#mermaid bakugo x human deku

[pinkykats-place]

BKDK Mermaid AU Mer Bakugo x Human Deku

AO3 SFW Recommendations

Disclaimers!

None of the stories linked below are mine!

All are SFW … still check tags

Credit to @hotpotatopotat for the fan art.

Note: If you read any of these stories and like them please let the author know with a kudos and/or comment!

Human Treasures by @kaligraphy

Summary: Mina convinces Katsuki to help two humans trapped in their sinking boat in the middle of the storm. Katsuki, for all his claims of disliking humans, seems to find one human rather pretty.

{One Shot}

Rated - Teen & Up

whirlpool by pinchingzuku

Summary: He still didn’t know how he, a mer, ended up being friendly with a human of all things. It still made his brain spin and his fins flicker in annoyance, maybe less than he would have liked, but still.

And definitely didn't expect to see him again, and again, and again.

{One Shot}

Rated - General Audiences

The sound of the waves by Ana_Writes

Summary: Love is beautiful, everyone knows that. Everyone sees it differently. For some it's the feeling, for others it's the person.

For Izuku? For Izuku it's the sound of the waves.

Being in love with a merman isn't normal or easy but Izuku knows he'll do anything to see Katsuki's face, feel his scales on his skin and hear the soft hum of the waves.

{One Shot}

Rated - Teen & Up

tides by kindaopps

Summary: A new lease of life, then, for this poor boy. 

A whim, nothing more. Katsuki’s good deed of the day. It’d be a waste, to let the life he’d saved slip away in a blink of an eye. 

Katsuki ignores the treacherous voice inside him that tells him that his whim had something to do with the dream-like, nebulous future that Katsuki saw in glimpses.

One Shot | SFW

Rated - n/a

Not Your Typical Tail by Cyberneticstar

Summary: The Little Mermaid AU where Bakugou takes the place of Ariel. And he's not falling for any of that 'love at first sight' or 'damsel in distress' bull shark shit.

Complete | 10 Chapters

Rated - Teen & Up

Sharks and ocean predators by @silverynight

Summary: He's ready to dive in, when he sees a very weird black and dark orange fin, it looks like a shark's. He knows sharks are not usually aggressive, but he doesn't want to upset it, so he decides to stay on the boat for a while, hoping it doesn't see anything interesting and decides to go away.

However, the shark doesn't go, instead it bumps into Izuku's small boat a couple of times until the green haired boy falls into the water.

Izuku closes his mouth and opens his eyes to see the creature and realizes that's not a shark but a merman; he's never seen one like him before. Uraraka's fin is completely different from his; from the waist down he looks like a black shark and the rest of him looks like a blond boy with red eyes, sharp teeth and well built body.

{One Shot}

Rated - Teen & Up

mer-made in heaven by Fangirl_on_fire

Summary: Over the next few weeks, Izuku kept returning to the cove. He brought a few gifts for Katsuki—slices of dried kelp, a pretty shell, things he had figured out mermaids often liked from his studies at the laboratory—but Katsuki never reacted beyond a slightly interested lift of his eyebrows. Still, Izuku was lucky just to have the attention of the most gorgeous person he had ever seen, mer or human.

As if it weren’t enough that Katsuki was devastatingly handsome, he was cute, too, with the way he scrunched his nose up when the sunlight hit his eyes or he idly splashed his tail in the water.

{One Shot}

Rated - Teen & Up

Tidal Wave by LoonyLoomy

Summary: When a young Izuku goes to the beach one day to find a boy with a lionfish tail, he's immediately enchanted. Katsuki is the coolest friend: confident, talented and bursting with amazing stories about life underwater. Little do the boys realise, however, that a mistake can change everything in the blink of an eye.

Incomplete | 6/? Chapters

Last Updated 2020 

Rated - Teen & Up

[alice-angel12x]

(Mha) Naga! BakuDekuShoto X (fem)Mermaid!Reader Pt.2

You can find part 1. Here

"I-Izuku was all that noise about?" Y/n asked as Izuku held her close in his coils.

"Umm, just a small argument," Izuku stuttered, his tail tightening ever so slightly.

"umm soo, Why did you send Shoto and Bakugou away?" Y/n asked.

"They have to go on patrol, to protect our territory," Izuku explained.

"Wow, so your territory must be huge," Y/n awed. " I would like to see it. Could you show me?"

"Umm, I don't know. I wouldn't want you to get hurt," Izuku said slowly, but as he looked Into Y/n's pleading eyes. Izuku could not say no to those eyes.

So with a sigh, Izuku slowly held her in his arms and hesitantly exited the cave. Izuku showed her all the note-worthy and historical sites and parts of their territory.

"And this is where All Might the Monster king defeated the Demon Tyrant All for One," Izuku explained but noticed that Y/n was not really listening.

Instead, she was looking out at the great pond in the distance. As he studied her, he noticed that her eyes were welling up with tears.

"Home," was all she said.

Izuku's heart began to panic, a part of him was demanding him to return her to her family, but the other half was begging him to not let her go. As his consciousness and desire argue within him, a voice breaks him out of his thought.

"Oi Deku! what are you doing out here with Y/n?!" A voice shouted.

The two turned to see Bakugo back from his patrol, and Shoto with his catch of 7 rabbits. Y/n smiled at them to acknowledge them but turned back to her attention back to her home in the distance.

______________

Later that night, as Y/n slept, the three Naga sat around the fire, an uncomfortable silence filled the air.

"Are we not going to discuss it?" Shoto asked, breaking the silence.

"About what?" Bakugo asked simply, pretending not to know. Izuku gulped nervesly as he put his food down.

"It's obvious that Y/n is homesick. She has every right to go home if she wishes," Shoto said with a cold glare.

Chills ran down Izuku's spine as he shrunk away from Shoto's gaze. Bakugou glared back, not really liking the Idea of letting Y/n go. Shoto slowly lifted Y/n off the ground and coiled his tail around her.

With a sad and heavy heart, Izuku slowly nodded his head in agreement, even if his eyes watered a bit. Bakugo merely turned away with a scoff but nonetheless agreed. Shoto held Y/n close as his rivals tried to get as close as possible to her, or as Close as Shoto would allow them.

________________

When the sun rose Bakugo carried Y/n through the forest, with Shoto and Izuku following not too far behind. As Y/n looked around at the forest, she could suddenly hear the melancholy song of her people. A song to call out to those who were missing, the last call for their loved ones.

Y/n turned to the origin of the sound, as she pointed in excitement. Bakugo quickly picked up the pace, swiftly leaving the forest to the edge of the grand lake. Just in the distance a small group of merfolk stuck their heads above the water and sang into the winds. Carrying their song.

In that small group, a small little mermaid Eri noticed the new presence and a familiar.

"Y/N!" Eri cried as she swam over to her.

Y/n and Eri's close friend and big brother figure Mirio followed not too far behind. Bakugo quickly dropped Y/n into the water, as the mermaid quickly swam over to her little sister and friend.

Before Y/n or Shoto, Deku, and Bakugo could say anything, Eri pulled her sister back home under the water's surface.

____________

The Nagas only watched in shock as Y/n and the other merfolk disappear into the waters below. Since none of them were built for swimming, they could only watch from the shore as they try to call out to Y/n.

___________

(A few days later)

Even Though Y/n was home with her family and friends, a part of her felt like she was still missing. And Eri and Mirio could tell that Y/n was not entirely as cheerful as she used to be. She would do her usual trip to the surface and sing to the wind, calling out to someone.

Eri may not have entirely understood, But Mirio definitely did. So with a heavy heart, he worked through the night and made a potion to give her legs.

"Promise you'll come back and visit every day," Eri demanded as she hugged her know human sister.

"I promise Eri," Y/n said as she hugged her little sister.

"Take care Y/n, and remember that we will always be here for you," Mirio smiled.

"Thank you," Y/n smiled with teary eyes.

--------------------

It took a long time to travel through the woods, avoiding the other Naga and finding that familiar cave. Y/n smiled as Three naga figures gasp in recognition, as they quickly rushed her and pulled her into a warm embrace.

People who asked to be tagged.

@itsroseally @mary-wolf

[saturnsorbits]

Todoroki, Bakugou and Reader, my favourite trio! 😏 With so many pairings, it reminds of a TV drama with at least 6 seasons! Everyone gets with everyone! And you know what, I wouldn't miss an episode! 😉

Yeah, Sero gives me beta vibes too! I also see Deku as beta! Idk, beta or omega, definitely not alpha!

Since it was MerMay, I read a few todobaku fics in the mermaid au! In almost all of them Todoroki was the mermaid Katsuki was human and it was just fluff! Oh and there was one where both of them were mermaids and it was a remake of the little mermaid! Katsuki was Ursula! 😂 It was so cute reading about them falling in love! 🥰

In some of them, there was maybe one smut scene in the end and somehow Todoroki could turn into a human so it wasn't too different! I'm not really sure about classic mermaid sex tho, but since I haven't read many fics about it, I haven't formed an opinion yet! But I do like mermaids in general or other creatures! I like when they fall in love and they're not even the same species! Vampire!Todoroki x Werewolf!Bakugou is also great!

-👀

Hahaha! You're not far off, it was a little mental - that's for sure. Fun, but mental.

FuckBoy!Beta!Sero supremacy. He's loved by everyone and loves everyone back in turn, with none of the drama that comes with an Alpha or Omega. As for Midoriya, I’m omega!Midoriya all the way.

Ah! Drop links if you have them? For anyone who’s interested! That Ursula!Bakugo sounds super interesting 🤣����🤣

That’s interesting. I honestly have no idea how I’d go about writing that, but my search history would be ruined while I found out that’s for sure!

Idk how I feel about creatures, I’m not a hybrid person, but I haven’t read many creature fics so idk. But, vampires! I can vibe with 😳🥰

[shigarakis-fifth-hand]

Mha Scenarios

I recently found your blog and i'm in love with your writing! ❤ So, since we are in May... could i request individuals scenarios for Deku and Mirio with the theme mermaid reader x pirate? You can invert roles if you prefer ^^

Haha I got bored and mixed in some yandere vibes and magic!! Hope you don’t mind!

Deku

Deku was the co-captain of the UA or Unified Anchor, one of the most respected and yet also most feared pirate ships in the world. They were known for putting a gun to everyone’s head, taking the treasure, and then leaving without a single casualty. That’s why Deku liked it, he didn’t have to get his hands dirty to have the sweet reward. Some called it lazy, but honestly they were jealous that they hadn’t thought of it first.

The captain was All Might, the strangest pirate captain on Earth. He was a kind simple man, but with the protection he felt over his crew, and his too-large-to-be-possibly-real-right? muscles, he was deadly to all but his crew. The ship crew was like a family, and he was going to pass it on to Izuku Midoryia once he grew too old.

“Deku! Get rid of the sail!” Ochako called out from the deck of the boat as Deku pulled on the rope, pulling the sails up and out as the boat began to surface on the island. “Look, it’s land ya hoes!” Denki grabbed Deku by his foot and swung him around playfully, helping the guy get down from the tall ledge where he stood.

The kids and All Might walked onto the powdered sand of the beach, shining like a crystal. “I know there’s something around here that’s gotta be worth taking. Refill the water buckets and harvest all the food we can get from this place. Bakugo! Midoryia! Search the island! It’s not that big, and surely you can see it all by midnight.” All Might pulled the boat onto the shore to resist the drag of the waves and then pulled it entirely onto the beach. 

“Set camp for us Shoto! Denki, I need you to load whatever we don’t need off the boat and get rid of it. This island looks as if it has plenty to offer.” All Might explained while Deku and an angry blonde boy began to walk into the forested area of the island. Izuku ruffled his dirty green hair and fixed his red shoe with a hole in it. All Might had offered to get him new ones, but these shoes were like his trademark in life. He needed them, and they needed him to feel as one together.

Izuku, using his sword, slashed through the palm trees and bushes in his way, before hearing a scream from nearby, as well as yelling. It was a girl’s scream. Deku ran as fast as he could through the forest, until he saw Bakugo pulling the hair of a girl on the ground. “Kacchan, what the hell do you think you’re-” Deku stopped cold, looking down to see that from the girl’s waist and below was a fishes tail.

“She’s a fucking mermaid! Stop moving bitch, I’ve got to find a net or something!” Bakugo was about to run off before Deku pulled him back angrily. Katsuki stared at Izuku, confused by his sudden change in personality 

“She can’t breathe asshole! Come on, it’s okay.” Deku took out his canteen filled with water and began pouring it on the girl’s neck where she was gasping from, as he saw the fish gills under her chin. “You’re not going anywhere. You’re going to help me get her back home.” She began coughing through her mouth, finally able to breathe once more.

Bakugo groaned, but accepted as he walked back to her, receiving a devil’s glare from the mermaid. “Where do you need us to take you?” Izuku asked as she gestured with a nod of her head towards the forest. Izuku smiled lustfully at her pretty face as he picked her up bridal style and began to walk that direction, Bakugo following slowly. 

With a few glances and nods of her head, she was able to show them back to a lagoon that came off the ocean bay. “Here.” Izuku set her in the water, not caring that his shoes were getting wet. As soon as he buried her into the calm water, he saw her mouth open and vibrancy return back to her body as she popped up, staring at his with stars in her eyes. “You saved me. How can I thank you?”

Izuku froze, blushing at how beautiful her voice was. So enchanting, so luring even. “Um...” Izuku paused, thinking of it would be selfish to ask for gold or something. “Our crew would love some of your mermaid treasure! Whatever you can spare, we’ll take it!” Bakugo exclaimed, receiving an annoyed side eye from the fish. “I would never do anything for you, but for you.” The mermaid looked back at Izuku with hearts in her eyes.

“I’d do anything for you!” She smiled, making the green-haired blush. “Then yes, if you have any treasure it would make our job a lot easier.” Deku smiled back as she nodded, before she grabbed Bakugo’s shirt. “Follow me boys. It’s just in the cave.” Before either of them could react, she pulled Bakugo into the crystal-clear water, and deep into the water beyond Deku’s sight. “Kacchan!” Deku screamed, before diving into the clear sea and swimming after her into the cave. 

Just as he was about to run out of air, he felt a hand grab him by the shirt and speed him inside a cave, bringing him up for air. “Izuku!” The mermaid brought him to the land inside the cave, pressing up and down on his chest. As Deku began to wake up, she wrapped her arms around him. Goodness, you should have waited for me to come back for you! Humans can’t swim fast enough to get here before running out of air.” She explained as Izuku nodded, looking up to see Bakugo wringing the water out of his shirt. “Bitch... getting me all wet...”

The mermaid got off of Deku, allowing him to get back on his feet. “Are you alright? You swallowed a lot of water.” As the mermaid hugged Izuku, he felt her heart beating fast. The two slowly began to come together, their lips pressing slowly as Izuku was enchanted by her beauty and the seduction of her fantasizing voice. Just as their lips pressed, the two were startled by Bakugo’s loud screams.

“Lord, you weren’t joking! Come on Deku, stop thinking about your dick and look at all this!” He yelled as Deku got off his knees, blushing as he looked over at what Bakugo was talking about. In front of Bakugo’s feet was a pile of gold coins, tiaras, swords, and clumps of jewels and gems. “Oh my god! Now this is a treasure! Come on Deku, let’s grab what we can and scram!” Bakugo began grabbing the treasure by the handfuls and stuffing his pant pockets.

“Don’t hesitate Izuku, this is the dumpster where we put the treasure we don’t want. My sisters use it for luring pirates like yourself to their death, or trading with the other mermaid colonies who can’t find good treasure like we do.” The mermaid explained as Izuku’s eyes widened at her words. “You... kill pirates?” Deku asked, ignoring his crewmate stuffing his pockets and mouth to the brim with coins and jewels.

“Not me, but my sisters. It’s one of the main jobs of our kind to lure pirates who have treasure that we want to their death.” She confessed as he nodded, his eyes still wide. “Not you, though. My sisters have left on a trading mission to the North, so you won’t have to worry about mermaids around these areas for months.” The mermaid smiled sweetly, cupping Izuku’s face with her soft palms. “Now go, get as much as you can carry Izuku.” She blushed as he slowly left her side, walking to the treasure.

You watched him slowly walk, loving the look of his legs walking. You wanted to see how he would look swimming... “Wow Kacchan, this is too good to be true!” Deku exclaimed as he finally had filled his pockets as much as possible. “Alright fish girl, take us back to the surface! Maybe we can come back once I empty out, we can bring back our crewmates!” Bakugo yelled, walking back over to the mermaid. “What? There are more of you? Tell me about them Izuku.” The mermaid smiled as he joined Kacchan, grinning at her. 

“Oh, you’d love them! Ururaka would love how soft your hair is, and Mina loves swimming so she’d love you!” He exclaimed as the mermaid’s eye twitched creepily, but only Bakugo noticed. “Oh, there are girls? Do you like any of them?” She asked as Izuku blushed, shaking his head. “Oh no, they’re just friends! Although I did kiss Ururaka once when we were young, but we liked each other just because we were dumb kids.” As Izuku and the mermaid continued to talk, Bakugo began to feel uneasy.

“Ahem, Izuku. Stop talking and just get us out of here. I don’t like this place.” Bakugo whispered as the mermaid began to get angry at him. “Oh Kacchan, I’ll take you back up right now. Wait here Izuku, I’ll come back for you.” The mermaid grabbed the blonde’s hand and began to pull him back into the water, being careful to not spill any of the gold coins out of his pockets. Izuku sat on the sand, playing with it’s soft texture as she soon returned. “Did Katsuki make it back safe?” Deku asked, standing and preparing to leave.

“Oh yes, he promised to get every single one of your crewmates to come to the shore in a few minutes. I can’t wait to meet all the girls.” She smiled as Deku lowered his hand, ready to leave. “Oh no, you’re not leaving Izuku~baby.” She smiled as his eyes widened, confused and now worried. “What do you mean?” He asked as she smiled wider, her eyes filling with evil and lust. “Why would I let you go when you’re going to go back to the girls? I need to keep you here, so no other girl will ever look at you again! You’ll be all mine!”

Izuku began backing up, shaking his head upsettingly. “N-no! When you bring them down here, they’ll bring me back!” He shouted as she began laughing, rolling around happily in the water. “Oh silly, don’t be such a dummy! I’m not bringing them down here!” She exclaimed as Deku’s eyes widened at what she meant. “I’ll drown each and everyone of your crewmates! My sisters will be so proud of me! My first mission was your crew, and I’ll get every single one of them!” She smiled as Izuku began crying, fearful and upset.

“Oh, and then once they’re gone you’ll be all mine! God, you’re going to stay here until death! I’m so excited!” She smiled, reaching for his shirt to grab him by and hug him. “I’ll bring you food three times a day, and never leave your side! I’m so in love with you! It’s thanks to you that my kill count will meet the requirements to become queen! Once I kill 20 people, I’ll be allowed to take the crown! You’ll be my king Izuku~Baby!” Deku crumbled to his knees, unable to believe the fact that it was his fault that his entire crew would die.

Mirio

Togata was a pirate, but one of the lowest class. He always did the night shifts with his witch friend Nejire, and his friend Tamaki who was training to become the captain. Mirio didn’t have much to do at the time, and could only wait until Tamaki became the captain so he would be promoted like Tamaki had promised. Until then, Mirio was living life day-by-day, bored out of his mind and looking for more.

“Ahh, we’re here Mirio! Look!” Nejire pointed to the island approaching, a cove, waterfall, lagoon, and a lush forest all appearing to his eyes. “Wow, look at that. I call the lagoon, I missed swimming without having to worry about sharks.” Mirio smiled as Nejire smacked him playfully in the back of the head. “Fine, Tamaki said that All Might needed more coconuts, I’ll get some of those.” Nejire smiled back, finally being able to climb onto the sandy beach.

Mirio grabbed his bag and got off the boat himself, walking along the shore towards the water. Looking back, he saw everyone pile off and look around, unknowing of what to do next. All Might had always been one to let the crew do their own thing. As Mirio entered the area of the water, he began to strip himself of his clothes. That was, until he heard a noise from a far. A sort of... gasping?

He turned and began swimming quickly to the shore where he heard the noise, getting out of the water and running to where the noise came from. Shocked, he gasped as his eyes laid upon a girl struggling, a rope wrapped around your neck tightly. As you grasped and pulled at it, Mirio ran to your side, scaring you As he pulled out the knife and put it to your neck, you began hyperventilating in fear of him trying to kill you. When he cut the rope and threw it from your body though, you realized what he meant to do.

You rolled into the water, splashing as you began to get away from Mirio. “W-who are you?!” You demanded to know, swimming slowly away from him as he put his hands up. “I’m not trying to hurt you! I saw you were stuck and wanted to help!” He explained as you stopped, looking down at the knife in his pocket. Noticing that he still had it out, he quickly tucked it away into his pocket. “T-thank you. What’s your name? I didn’t know humans were on this island.” You asked as his eyes widened. Had you just called him a human? Weird.

“U-um, human? What do you-” As his eyes peered down her body, he was left to not look upon legs beyond your waist but a fish tail. No, a mermaid tail was more precise. Looking at you again, he noticed the shell necklace, voluminous yet wet hair, and the starfish on your head. He realized now that all that wasn’t just a coincidence, but a design choice. “Y-you’re a mermaid.” He muttered as you giggled happily, doing a flip in the water, showing off your light teal tail. 

“Yes? Now what’s your name human pirate?” You asked as he smiled, unable to remove his eyes from your happy emotion. “W-well, I’m Mirio Togata, but you can call me Miri.” Togata turned on his charm, allowing you to smile at him. “I’m Y/n, like to meet you Miri.” You grinned as he could help but blush at your cuteness. Y/n was such a beautiful name... “So, where’d you come from human boy? If you were on this island, I would have heard about it.”

He grinned, sitting down on a rock on the shore close to you, and began to explain. “Well, my crew and I just got here. They’re unpacking, but I have nothing to do so I thought I’d come here and swim.” You nodded, your eyes sparkling at the idea of others. “Well then you should swim with me! It’d be so much fun!” You began to tug at his arm playfully, laughing happily with him. “How long can you hold your breath? How fast can you swim?!”

Mirio felt his heart smile at your enthusiasm as he stripped himself of his shirt and pants embarrassingly. “Come on slow fish! Come on in!” As Mirio was about to protest, you smacked her tail against the water, spraying him with the sea water. “You’re on!” He yelled before diving in, coming up to face you. You two began splashing each other happily, and Mirio couldn’t help but feel weird about how fast he had connected with this random girl- eerrrrrr, mermaid? 

“Mirio! Where are you dummy?” Mirio and you turned surprised, hearing Nejire’s voice near them but hidden away. “Dang it, I don’t want to go back already.” He mumbled, beginning to swim to the shore before you grabbed his arm. “Do you trust me?” You asked, holding his arm tightly as he looked at you with a questioning stare. “Answer me Miri.” As he looked into your innocent e/c eyes, he nodded hesitantly.

In that moment he was swept under the water, and quickly pulled under the waves. As he went deeper and deeper, the amount of light began to quickly decrease until he was in pitch darkness. He held his breath though, and in a few moments later he was brought to the surface, your grip still holding his arm firmly in her grasp. “Good, you weren’t moving for a minute and I got scared. Here we are!” You exclaimed, motioning to the small amount of land you were on.

Looking behind you, Mirio saw a waterfall hiding you two from the rest of the world, allowing him plenty of room to lay on the beach. “You can stay here for as long as you want, I come here to hide too.” You smiled sadly as he slid onto the sand, leaving his legs in the water. “What do you have to hide from?” Mirio asked curiously as you glanced at him, sadness in your eyes. “D-don’t make a big deal about it, but I’m becoming queen of my territory next week. My dad is insisting that I need to get married, but I just can’t seem to find someone who I like who also likes me.”

You sighed, resting your head in his lap as you continued your stressed rant. “I come here to hide, where nobody is pestering me about royal duties or my dad isn’t setting me up with every other guy in the ocean. Here, the water is so loud that you can just scream, and nobody will hear you.” You smiled before feeling his arms wrap around you tightly. “It’s okay, I promise you’ll find someone.” You turned to him, hearts in your eyes as you stared at him.

“You think? That means a lot coming from a stranger, but you just don’t know me. I’m childish and I play pranks on the butlers when my dad isn’t in town to lecture me. Sometimes, I feel like I have no purpose, and I’m just waiting for my dad to give me a reason to stick around. Ya know?” You explained as Mirio’s eyes lit up. You were just like him, like he was waiting for Tamaki to hand him a position to give him a reason.

“Actually, I’m just like you. My pal is going to become captain in a few months and then give me a job, but until then I’m just waiting for something to happen and make my time worth-while.” He explained as you smiled, suddenly wrapping your arms around his neck. “Oh Miri, you’re the greatest. If you were a merman I’d have no issue finding someone to marry.” You smiled at him, before your face went all red as you backed away, realizing what you had just said.

“I... uh- what I meant to say was that I wish you were a merman. Then I could give you a purpose like marrying me and then helping run the kingdom... until I were to find someone, which would probably never happen.” You tried to save yourself, but the damage had been done. As Mirio was about to comment, he heard his friend once more, except now Tamaki was with her. “Mirio! Buddy?” Mirio rolled his eyes, beginning to stand. “Y-you’re leaving?” You asked as he shook his head, putting a finger to his lips to tell you to be quiet.

“I’ll be right back, I just need to tell them I’m okay.” He smiled, walking out into the water past the waterfall and out of your sight. You smiled sadly, resting your head on the shore as you thought about the blond and his dreamy blue eyes. Mirio walked up to his two friends, smiling and waving. “Ahh, there you are! I saw your clothes by the rocky side of the bay and got nervous.” Nejire explained as Tamaki chuckled. “You okay there bud? Your face is really red.” Tamaki obliviously commented as Mirio sighed, knowing there was no point in hiding it from his friends.

“Actually I-” His sentence was cut short by yelling coming from the cave inside the waterfall, your voice to be certain. “Mirio! No, please! Wait a second! Miri!” All three of the pirates began running to the waterfall only to find scratch marks on the sand and rocks, showing signs of struggled that lead to someone being dragged into the water. Immediately, Mirio’s mind went into immediate panic mode as he turned to Tamaki and Nejire. 

“Nejire, do you know how to turn someone into a mermaid?!” He asked as she looked at him with the most bizarre expression before nodding. “You mean just a tail and the ability to breathe underwater? Of course.” She nodded as he smiled, gripping her hands. “Listen, I can’t explain now but I need you to turn me into one. Please, I’m begging you!” He exclaimed as she began waving her hand, muttering a spell.

“I’d hurry if I were you, I’m making the temporary one that lasts 20 minutes. The permanent one involves a potion and all that.” She explained before continuing to mutter the spell, Mirio feeling his legs go to Jello as he fell into the water. Looking down, his long legs had been changed into a red merman tail like Y/n’s. “Alright, I’ll be back soon.” He gave them a thumbs up before disappearing into the water, leaving his friends alone and very confused. Dipping into the water, Mirio had one mission. Save you from whatever had taken you.

Left and right, he followed the pebble path on the ocean floor while learning the mechanics of the tail before gasping. In front of him was a village, houses surrounding one large castle. You must have been taken there. In the distance, he could hear your voice as he began to race towards you, going faster than he ever thought possible. Once he was inside the village, he kept his head down, not wanting to draw any unwanted attention. He continued to follow your voice, until finally seeing you.

At the gate of the castle was you, two guards grasping each of your arms, and who he thought of as the King and Queen. “Y/n!” He yelled out, receiving you to look his way and watch his eye, your face lighting up. Without even having to try, you pulled your way out of the guard’s grip and raced towards him, enveloping him in a tight hug. “Y-you’re a merman? No, this is a spell! You would probably have a blue tail if it was a potion...” 

You murmured, continuing to look him up and down as the guards, King, and Queen began slowly swimming your way. “I came after you once I heard you screaming. I thought you could possibly be in danger, I got worried.” Mirio explained as you smiled, tears coming to your eyes. “I... I didn’t want to lose you.” He confessed, his cheeks highly tainted red as you smiled, kissing his cheek. “Y/n... who is this?” You father asked as you turned to him, smiling like an idiot.

“This is the guy I want to be my King.”

[pinkykats-place]

BKDK Mermaid AU Mer Bakugo x Human Deku Ⅱ

AO3 NSFW Recommendations

Disclaimers!

None of the stories linked below are mine.

All contain mature content. Read tags.

Art work is not mine.

Note: If you read any of these stories and like them please let the author know with a kudos and/or comment!

A Salty Distraction by Viridian_Sunset

Summary: Deku has a shitty day at work and finds comfort in his mermaid friend.

{One Shot}

Rated - Explicit

One Fish, Two Fish, Half Fish, Marine Biologist by RandomFandoms65000

Summary: Izuku was ten years old when he met Katsuki aka a merman that the aquarium called Dynamight. As Izuku aged the merman never left the back of his mind it was one of the reason why he decided to become a marine biologist. He not only wanted to because of his love for salt and fresh water creatures, but to study Katsuki's species. Merfolk were rare and well the more they talked the more Izuku fell in love with the merman. Maybe he had always loved him.

Complete | 20 Chapters

Rated - Mature

Specks of Gold Against the Ocean's Waves by Serah_chan

Summary: While enjoying the light of the full moon, Katsuki Bakugou, an orange tailed merman, crosses paths with a handsome surfer with freckle littered cheeks. While he's not supposed to interact with the human, there's something about them that draws the merman to get close and ignore all boundaries.

“Huh, he’s kinda good looking for a human.” Katsuki muses, feeling the annoying itch of curiosity push him towards getting a better look. He wonders if he can observe him from down below as he takes on the waves, catch glimpses of him as he falls back to the water. Human eyes weren’t exactly the best anyway, so he shouldn’t have to worry about being seen... right?

Complete | 19 Chapters 

Rated - Mature

I’ve Got You, Stupid Human by GreenEyesSublime

Summary: The mysterious man swam the last few feet to the rock. Putting his hands up on the edge, he hauled himself out of the water with a flourish. Izuku watched in awe as first a toned, muscled chest emerged from the water and then a tight pack of abs followed by a dangerously sharp v-cut pointing downwards towards a...tail?!

— — —

Or, human!Izuku has been cleaning the beach for weeks and merman!Katsuki is tired of just watching. 

{One Shot}

Rated - Explicit

A Salty First Kiss by DarkMachi, Iwacakes

Summary: Izuku Midoriya's family beach trip went awry when an attempted act of heroism lets to an unexpected first.

Jumpcut to twelve years later: Izuku was struggling to stay afloat when his stepfather threw him a chance. What was meant to be a reprieve turned into something else entirely when he finds someone washed onto the beach. A memory he should have buried long ago, a kiss he could never forget, and a debt he could now repay.

Or.

What do you do when you have an angry Merman in your bathtub that speaks a different language?

Or.

What do you do when a stoopid hooman rescues you and then proceeds to start courting with you?

Complete | 101 CH | Contains Smut

Wavelength by gardengalaxy

Summary: Izuku practices surfing away from prying eyes, knowing he will have lots of attention on competition day. But what if he's already caught someone's interest?

One Shot | Trans Deku 

Rated - Explicit

A Breathless Song by chibicharlie95

Summary: Izuku loves the sea, so much so that he can never seem to part with it... But will he become a part of it? A siren's song in the middle of a storm may help him to find the answer.

One Shot | NSFW

what the water gave me by twinstarsies

Summary: "It's like I'm challenging fate," he says to a hermit crab he finds tucked into a crevice in the rock. "I'm daring it to knock me into the water just to show me who's boss. At this rate, it's probably going to win." 

"Something's gonna knock you into the water, alright, but it won't be anything as nebulous as fate," a voice says, tone wholly unamused. 

Izuku startles so hard that he forgets to use his quirk to catch himself as he slips from his perch on the rock into the ocean. 

— — —

Izuku goes on a forced vacation and meets the love of his life.

Complete | 2 Chapters

Contains Smut | Trans Midoriya

Call of the Siren by Gemsom

Summary: Izuku always imagined that sirens sang their victims into the water, and that their helpless victims could do nothing to resist. He almost wished that was the case.

Every time his captain’s ship crossed the narrow sea, Katsuki came to see him. The siren's friendship seemed so genuine, but Izuku was smart enough to know that the creature was sweet talking him to his death. Katsuki never denied it either - asking over and over for Izuku to offer his life.

Of course, Izuku had no way of knowing that the siren planed to give him a new one in return.

Incomplete | 9/18 Chapters | NSFW

Last Updated Jan. 2023

[pinkykats-place]

BakuDeku Fic Recs MerMay 2023

archive of our own

Disclaimers!

None of the stories linked below are mine.

All are SFW … still check tags.

Art not mine … by @fihella

Note: If you read any of these stories and like them please let the author know with a kudos and/or comment!

Disaster is My Love Language by @mjbunnyluv

Summary: Izuku, a marine biologist, rescues a struggling merman caught in a net. Once pulled out of the water and brought to the wildlife rehabilitation center where he works, it appears the mer's injuries are worse than he thought. While aggressive and furious that he has been forced into captivity, Katsuki slowly comes around to the idea that being taken care of isn't so bad.

Mer!Baku x Human!Deku

{One Shot}

Rated - Teen & Up

Against the Course by bundie

Summary: Bakugou Katsuki is an expert on mer and he's sworn to protect them from pirates and poachers. He joins a pirate crew to sabotage their hunt and comes across the most beautiful mer he'd ever seen. He's forced to drastic measures to protect Deku, even at the cost of his own life.

Mer!Deku x Human!Baku

{One Shot}

Rated - Teen & Up

Sharks and ocean predators by @silverynight

Summary: He's ready to dive in, when he sees a very weird black and dark orange fin, it looks like a shark's. He knows sharks are not usually aggressive, but he doesn't want to upset it, so he decides to stay on the boat for a while, hoping it doesn't see anything interesting and decides to go away.

However, the shark doesn't go, instead it bumps into Izuku's small boat a couple of times until the green haired boy falls into the water.

Izuku closes his mouth and opens his eyes to see the creature and realizes that's not a shark but a merman; he's never seen one like him before. Uraraka's fin is completely different from his; from the waist down he looks like a black shark and the rest of him looks like a blond boy with red eyes, sharp teeth and well built body.

Mer!Baku x Human!Deku

Complete | 2 Chapters

Rated - Teen & Up

to the Touch by meteormind

Summary: With those huge green eyes beading with pearly tears, he looked about as threatening as a limpet with its shell torn off. Katsuki squinted at the waving tentacles, wondering how they tasted, remembering the crunching chew he'd had the chance to appreciate the rare times he'd cornered a few of those shy creatures.

Then he remembered that he couldn't eat mer. It was frowned upon. Katsuki glared down at the merboy, his excitement fading into disappointment when he realized he probably wouldn't even get to punch something. "The hell are you lookin’ at?"

"S-sorry! It’s not-I wasn't trying to spy on you or a-a-anything!" the boy said at last, throwing his many squiggly appendages about his face. "I-I-I—"

Oh. It was a loser!

🦐 pistol shrimp katsuki x dumbo octopus izuku 🐙

{One Shot}

Rated - Teen & Up

Wild on the Beach by EpicKiya722

Summary: Rumi and Izuku, a pair of merpeople raised by caring couple Inko and Hisashi, find themselves interested into some new humans that arrived on the beach. The interest is very mutual.

Mer!Deku x Human!Baku

Complete | 3 Chapters

Rated - Teen & Up

𓇼Collectors Item𓇼 by BeanQueen_29

Summary: Mer!Izuku X Human!Katsuki

It was by chance that Katsuki had caught wind of the markets having collected a creature they coded as a "Sea Naiad" or “Son of Nereid”.

He was just closing in on a deal of his new purchase of one of the rarest fish found in Japan waters; The Elusive Oarfish, otherwise known as ‘Ryugu no tsukai’.

Originally, he only heard the name "Ryugin Decedent" getting thrown around, but after making his investigation of this new rarity of the sea the markets seem fond of keeping hidden, the more intrigued he became. Especially when the names started to become eerily specific.

A Sea Naiad.

They caught merfolk.

And as a collector of Legend-Becoming (going extinct), it would be unwise to not let such an absolute specimen slip through his fingers and into the hands of another greedy buyer.

— — —

Or Katsuki, a man with unbelievably deep pockets, is a collector and a mermaid he later names Izuku is up for purchase. A lot of unexpected developments come between them, and it's more than just simple curiosity and admiration of each-other’s mind. But of the body too.

Incomplete | 3/? Chapters

Rated - Explicit

A completely irresponsible conservation effort by McAlli

Summary: Izuku fucks Mer Katsuki.

That's it. You saw the tags. You know what's in here.

Mer Baku x Human Deku

{One Shot}

Rated - Explicit

[pinkykats-place]

Mermaid AU Human Bakugo x Mer Midoriya Ⅱ

AO3 SFW Recommendations

Disclaimers!

None of the stories linked are mine

None contain smut - all are SFW

Credit to @novaneondream for fan art.

Note: If you read any of these stories and like them please let the author know with a kudos and/or comment!

Shipwrecked by Withstarryeyes

Summary: When he wakes there is a man above him. He’s backlit by the sun, features blurred out by too much light, and Bakugou shifts upwards abruptly. The man slinks back, but lingers, hands outstretched as if he’s afraid of what Bakugou might do. In the background, waves crash onto the sand, and Bakugou turns, searching for his ship, for his crew. He screws his eyes shut, breathing quickening as he remembers the storm and the feeling of the deck on the waves. Something cool connects with his cheek and Bakugou opens his eyes, scrambling backward without thinking.

One Shot | SFW

Made To Be Held In Your Hands by BrandWhoreStarscream

Summary: Just a cute fic about Kacchan finding his soulmate when he's very young, a cute little mer he dubs Deku, but no one believes him about his fishy friend. Cuteness abound.

One Shot | SFW

the one where katsuki is a pirate by Kasplode

Summary: Katsuki and his crew take down an enemy ship, and Katsuki gets distracted by a certain mer.

One Shot | SFW

Fish Eye by sweetautumnwine

Summary: Izuku, a solitary merman, finds himself captured by aquarium staff and imprisoned in one of their laboratories; the man assigned to observe him, Katsuki, was on the boat when he was ensnared in the nets. As they grow to know each other more, Katsuki must decide where his duty lies, and Izuku must learn what his heart desires.

One Shot | SFW

Home is where the waves crash by tiredwrites

Summary: Izuku thrashes in his cage, the fins that line his large tail flare with a dangerous purpose. The claws his fingers taper into slice through the water and catch the light that filters into the clear water of the aquarium tank he's in.

His gills flare in irritation as he flips around, muscled tail ramming into the three-inch glass barrier with a thundering BAM!

Bioluminescent sacs under clear scales flare and glow, flashing a brilliant toxic green. The team that had brought the merman into the tank watch the mer flail and roar, flexing the powerful jaws that can often unhinge, like a snake.

{One Shot}

The King and Dad by Serah_chan

Summary: Alpha!Mer!Deku, King of the Seas, Nightmare of the Deep, and Sucker for Human Kacchan.

The King of the Sea doesn’t need a mate, but the second he lays his eyes on a feral looking blond teaching his cute little calf how to snorkel, the “doesn’t” turns into a “maybe”.

3/? Chapters | SFW

Last Updated Nov 26

Sand is Land and Sea Inbetween by Frost_or_Fire

Summary: Katsuki is by no means a marine biologist, really, and he knows that he could just walk away and act like he saw nothing. Act as if he didn’t see a half-human body laid across the late October sand while a black tail is still in the water, sorta concealed by the rolling waves that washed over the figure. He could just act like this is all just some dream that his subconscious cooked up for him to be put through to show how miserable he actually is.

But Katsuki fucking Bakugou is anything but a coward and a sick person.

----

Bakugou finds a Merperson on a beach and takes them home to help with their injuries, and possibly get more than he bargains for.

Incomplete | 8/? Chapters | SFW

Last Updated 2022

At An Ocean's Divide by that_enby_nerd

Summary: An AU in which Midoriya is a merman living near the kingdom of the Bakugo family, and a forbidden connection forms between the prince and a knight of the sea.

12/? Chapters | SFW

Last Updated May 2022

Save to Swim by sanjusangendo333

Summary: Izuku is out for a run, when he spots a blond man in distress in the river. He quickly strips off his shoes and clothes until he's barenaked to save him. But Katsuki is not in distress and nor is he a regular guy. He's one of the men from the elite diving unit of Japan’s coast guard who is in the middle of diving exercise.

Katsuki and his unit all agree that, ‘WOW! Izuku can swim really well and so fast!’ He'll really fit well in Katsuki's diving unit, they all say as Izuku is still in the water. But Izuku hurriedly excuses himself and swims away, because otherwise, they'll see the fish tail that his legs transformed into the moment he dived into the water.

Katsuki, of course, does NOT give up on trying to recruit him.

{One Shot}

Rated - Teen & Up

Wish by Darkshadow

Summary: Eight year old Katsuki goes to the beach only to spot the most beautiful creature he has ever seen, can he convince the merman to stay by his side even through times of struggle

{One Shot}

Rated - Teen & Up

Fish Eye by sweetautumnwine

Summary: Izuku, a solitary merman, finds himself captured by aquarium staff and imprisoned in one of their laboratories; the man assigned to observe him, Katsuki, was on the boat when he was ensnared in the nets. As they grow to know each other more, Katsuki must decide where his duty lies, and Izuku must learn what his heart desires.

{One Shot}

Rated - Teen & Up

What Lies Below by Anonymous

Summary: Momo screams at her father, she is a scientist! But mermaids must be real! She’s fascinated by the endless scientific possibilities. One day Momo meets another scientist with dreams like her, Iida Tenya. They devise a plan to conduct a voyage to a mysterious island, rumored to have merfolk living below. They struggle to gather a crew as many claim them insane.

Thus they gather Katsuki, son of the Queen, pro navigator, known for his brutish behavior. Kirishima, who spent his whole upbringing on the sea. Plus the two morons, Mina and Denki, as Katsuki claims.Izuku is a merman prince enamored by humanity, much to the dismay of Todoroki. Always worrying his parents, as he disappears to scavage the ocean depths with his best friend Ochako in search of human trinkets. The kingdom adores the Prince. Although some fear Izuku’s curiosity could be fatal.

Todoroki is the protector of the island and the mermaid kingdom below it. As King Toshinori’s powers weaken, Todoroki, a descendant of the Gods, becomes his apprentice. He aims to protect all those he loves yet Izuku makes it near impossible. Todoroki will not let the past repeat, humans are NOT to be trusted.

Read as their paths collide.

4/? Chapters | SFW

Last Updated 2020

[pinkykats-place]

BakuDeku Mermaid AU

Fics w/ Multiple Chapters

AO3 Recommendations

Mer Baku x Mer Deku

Disclaimers!

None of the stories linked are mine.

All contain mature content.

Art not mine - credit to @fihella

Note: If you read any of these stories and like them please let the author know with a kudos and/or comment!

Sunken Treasure by @queen-swagzilla

Summary: Izuku and Katsuki are mermen in the same pod. They're best friends—partners in crime—and they do everything together. They even take up jobs guarding the pod's territory together.

When Katsuki presents as an alpha, nothing changes. Izuku expects that nothing will change when he presents, either. But then, he presents as an omega. At first, he doesn't mind. Why would anything change? Besides, maybe now that he's an omega, Katsuki would consider courting him.

But instead, Katsuki all but vanishes.

Complete | 4 Chapters

Rated - Explicit

The Tides They Are A-Changing by @mjbunnyluv

Summary: When Izuku gets separated from his pod during the annual migration to the breeding grounds, he must rely on a strange mer to help him find his way home. Notorious for rejecting any and all courting gifts, the young mer is confused when he begins to develop feelings for the blonde stud. Fighting off feral mers, avoiding fishing nets, and oil spills, the pair grow closer, all the while trying to conceal their true feelings for one another.

Complete | 10 Chapters

Rated - Explicit

A Love Song from the Deep by MadameButtButt

Summary: His pod has always feared the Dragons, the alien clan that dwelled among volcanic vents of the deep, and with good reason. No one has seen one in generations, but Izuku heard stories of blind, listless things that drifted along the sea floor like ghosts.

— — —

Wherein Izuku is a curious merman, and his new friend is very fascinating.

Complete | 5 Chapters

Rated - Explicit

Trapped by jaegerackereri

Summary: Izuku knew he shouldn’t have followed that seagull towards the coast. He knew that’s where the humans were and he was told many a story of how destructive they could be.

But being just a little gup he had foolishly followed the pretty odd bird towards the land where sea meets sand.

And right into the hands of three exotic animal dealers…

Incomplete | 13/? Chapters

Rated - Explicit

Series: Breathe In by @contrarybee

Summary: Midoryia Izuku was born in captivity. He's never known the ocean.

His human carer Yagi-san tells him they're getting a new merman in the aquarium, one that they hope Izuku might like. Having been alone since his mother's death, Izuku is beyond excited to have a new mer around, but Bakugo Katsuki might prove to be too much. Or maybe he's just right.

3 Works | No Quirks

#1 is complete & 9 chapters

#2 is a one shot

#3 is complete & 10 chapters

Rated - Explicit

Forbidden by jaegerackereri

Summary: After the SharkMers went extinct, there only remains a handful of them throughout the ocean.

Adopted SharkMer Izuku is taken in by TropicalMer Inko after a traumatic situation in the reefs, and she raises him as her own. 15 years later he just can't get the idea of exploring out of his head. He feels like there is someone out there searching for him, another one of his remaining kind.

Incomplete | 24/? Chapters

Last updated June 2023

Rated - Explicit

[pinkykats-place]

Mermaid AU🧜 mer deku x human baku

AO3 Fanfic Recommendations

BakuDeku

Disclaimers!

None of the stories linked below are mine.

Some contain mature content - read tags.

Art not mine - artist thegirlinthefandom.SG

Note: If you read any of these works and like them please let the author know with a kudos and/or comment!

Something Fishy by 9oz

Summary: Midoriya, a mermaid, ends up on barbarian pirate captain Bakugo's ship and it's not good news (yet).

Complete | 8 Chapters | Mature

Out of these Waters by awkwardtypeos

Summary: (Little Mermaid AU - with a twist)

Izuku realizes that not only did he just fall out of love at that exact moment, but he also realizes that Katsuki Bakugo is the biggest asshole he’s ever met in his entire life. He sold his soul to a sea witch to be with the world’s worst human being. He’s too furious to be sad - so Izuku stands up on his painful legs and slugs Bakugo right in the jaw, hard, and watches him scramble backward clutching at his face, spitting out more curses than Izuku knew to exist in the human language.

Complete | 16 Chapters

Rated - Mature

If the stars could sing by Evilkat23

Summary: There in front of Aizawa was an aquarium the size of the wall, which, given how big and long these walls were, was impressive. The aquarium was back lit by a soft blue back light and fake background of the ocean. Yet, there weren't any fish in this aquarium…

Well…

There was one. Kinda.

There in the aquarium was a mer…boy?

Abandoned | 7 Chapters | Mature

Of Love, Scales, & Fins by orphan_account

Summary: Katsuki Bakugou is doing what he can to rise up in the ranks as a criminal, even if it is wasn't his first choice in life. Of course, he made the mistake of messing with the Shie Hassaikai clan, which landed him in the river to swim with the fishes.

Or, at least that's what he thought. The last thing he remembers before waking on the riverbank is a beautiful face & a soft kiss.

Then, the same man, whom he thought was just a figment of his imagination, shows up at his door, naked aside from his neighbor's garments & telling Katsuki that he's a member of the merfolk! What the fuck?

Complete | 16 Chapters | NSFW

Wish by Darkshadow

Summary: Eight year old Katsuki goes to the beach only to spot the most beautiful creature he has ever seen, can he convince the merman to stay by his side even through times of struggle.

One Shot | Mature Themes | No Smut

I Am No Fisherman's Slave by DanaEliza

Summary: After many failed attempts, captain Bakugo has set sail for an island that mostly certainly has mermaids. A species he has been looking for, for years. But what if instead of finding a mermaid, one has already found them?

7/? Chapters | NSFW

Last Updated Feb 2021

Home is Where the Heart Is by RoboticSpaceCase

Summary: Tricked into working under a strange man as a “treasure hunter”, Katsuki Bakugou finds himself out on a boat, trolling the waters for something interesting. When he accidentally catches a mermaid, Bakugou knows he’s found his way out of his boring job and all of his debt. All he had to do was make it back to shore.

12/18 Chapters | NSFW

Last Updated 2020

Life Amongst The Waves by Skelekitty

Summary: Izuku and Bakugou met as children. Izuku got caught in the currents during a storm out at sea and ended up being washed ashore on a beach. It just so happened that Bakugou was out for a walk early that morning and found him unconscious. He helped Izuku and got him back in the water.

After that they met often in a secret cave to escape the eyes of others around, this went on for a few months, but one day Bakugou stopped coming.

Incomplete | 7/? Chapters | SFW

Last Updated 2019

When you hold me by Serah_chan

Summary: It’s another oil spill, Katsuki’s told. Rescue and containment operatives have been mobilized to save as much life and hold off the growing blotch of sticky death spilling into the bay. Katsuki’s unit gets sent out on boats to set up oil boons. He’s just finished and is getting ready to go switch to life rescue when he spots something hits his small boat. What the fuck? He thinks just before there’s another thud. He rushes to the side to take a look, aware it may be an animal in peril... what he finds instead is an oil slick covered hand reaching out, pressed against the side of the hull.

Complete | 24 Chapters

A Sea of Green and Red by TriforceAngel

Summary: Pirates are terrible, ruthless, taking and hurting others for anything that they want. Or are they?

Taken from his home and his loved one's Izuku must find a way to get back home beneath the waves. Will he have the help to do so? Or will he change his mind to pursue something he had never experienced before?

WIP | 20/? Chapters | mature content

Last Updated May 2024

At An Ocean's Divide by that_enby_nerd

Summary: An AU in which Midoriya is a merman living near the kingdom of the Bakugo family, and a forbidden connection forms between the prince and a knight of the sea.

Incomplete | 12/? CH | Mature

Last Updated May 2022

Series: Pirates and Sirens by BluGemRising

2 Works

[alice-angel12x]

Naga! BakuDekuShoto X (fem)Mermaid!Reader

Part 2. Here

Y/n is warned to never go near the surface by her pod. She's been going near the surface every night and very early at dawn, sunrise to relax, sing, watch the sunset. Being a mermaid had its many blessing and curses. They were creatures of great beauty and magic, from their beautiful voices to the powerful magic in just a single tear. So naturally, they were secretive creatures.

A great lake deep in the forest of Atigus, a large pod of Merpeople lived in this lake. A lake so deep it could have been mistaken for the deepest part of the ocean. Living so far down in the deeps, they were a bit isolated from the many magical and grand creatures that also inhabit the forest.

Yet Y/n was a curious individual and would swim near the surface, in hopes of seeing another creature. Thought she was smart enough to know that there is one creature that she must avoid at all costs, Man. Yet She would brave the bright surface, and sing out to no one in particular.

One day as she ventured to the surface at sunset, she began to sing into the wind. As she rested on the lake's edge, she suddenly felt a painful sting on her shoulder. Y/n gasped in pain, but her body became so heavy suddenly and lost all control. As she laid there motionless, as she heard the snicker and the strange language of humans.

The humans quickly slumped the unconscious mermaid onto their backs and tried to find their way back to the village. Yet as they walked down the path, they could feel predatory eyes watching them.

As one of the humans looked around, they noticed that special markings were etched into the tree's around them.

"Oh no, we have walked into Naga territory," one of the humans gasped in horror.

As the two trembled, a large shadow engulfed them. The tallest stood up to 9 feet in height, standing above them, while the shortest stood 7 feet. They couldn't begin to fathom how long these nagas could be. These giants glared down at the small humans that had invaded their territory.

Dealing with the humans was simple, yet something did catch one of their eyes. The smaller green naga noticed the abandoned creature on the ground.

"What is that?" The freckled naga wondered.

"It looks like to be a humanoid creature like us," a red and white naga commented as he leaned over the mermaid.

"Yet, it's not. Its scales look strange and its tail is so short, it's the same size as those pathetic humans," The ashy blond Naga scoffed as he picked the mer by her tail.

"K-kacchan! Careful," the green-haired naga gasped.

"Why does it look like part fish?" The red and white naga asked, " You should be careful, Bakugo."

"Whatever, Deku," Bakugo scoffed, as he tossed the body over to green Naga.

"Nice catch Midoriya," The red and white naga commented.

"Thanks, Shoto," Izuku sighed as he got a closer look at the creature.

"So what do you think it is?" Shoto asked.

" It must be some water-faring creature, other than that I'm not sure," Izuku said as he held the mermaid close. " It would be nice to speak to her about it. Maybe I could hold onto her, F-for a  little while."

"Why?" Shoto asked.

"Probably cause this will be the only female that can't walk out on him for better a mate," Bakugo commented.

"I think you may be projecting a little, Bakugo," Shoto commented.

Bakugo scoffed and slithered off somewhere else, as Izuku and Shoto stood in awkward silence.

"S-so does that mean I can? N-Not for the reason that he said!" Izuku said quickly.

"I'd... Certainly hope not," Shoto said simply.

_________________________

As Y/n slowly came to her senses, she could feel something odd. As she slowly opened her eyes, she noticed that this body of water was barely deep. Plus something was wrapped around her, it felt strange.

She slowly opened her eyes, to see that the surface of the water was just a foot above her head. And wrapped around her waist was a tail, a snake tail. Y/n tensed slightly, but the creature felt her movement and quickly tightened its hold.

She was suddenly pulled up above the surface and was face to face with a freckly face with forest green eyes.  His eyes were full of wonder and curiosity as he inspected Y/n very closely.

Y/n wanted to scream, yet remained frozen. Not only was she unsure of this creature, but also intimidated by its great size. She never felt so small and helpless.

"what are you? And who are you?" Deku asked as he muttered other questions.

"A-a mermaid, my name is Y/n," Y/n squeaked nervesly.

"Ah, like an Oceanid," Izuku smiled." I-i have to write this down, I have so many questions."

As his tail wraps more around Y/n, she watches as the snake man turns to gather his parchment paper. They were covered in writings and notes about almost anything. Before Y/n could get a grasp of what was happening, she was drowned in the naga's curious questions. He must have not been paying too much attention as he tightened his hold.

"C-can't...Breath," Y/n whimpered as she passed out.

------------- Deku suddenly felt Y/n go slack, he stopped rambling and quickly looked at her.

"AHh! Y/n," Izuku gasped as he quickly placed her back in the small watering hole.

"Oi, killed it already," Bakugo laughed mockingly.

"N-no, Y/n passed out," Izuku said nervesly.

"So what is she?" Shoto asked as he tried to get a better look.

"An Oceanid, but she calls herself a mermaid," Izuku said as he put down his notes.

"Hmm, well what were those humans doing with one?" Shoto asked.

"Probably harvest her for magical properties. If they can't possess magic on their own, then they will take it," Bakugo scoffed simply.

"Well, I'm glad we came across those humans then," Izuku said with a relieved sigh.

___________

After a couple of weeks, Y/n grew used to Izuku and his curiosity. She would learn many things about him, that he was defiantly a curious Naga and a very emotional one. Will cry a river at any strong emotion he feels. Y/n could only hope that this small pool of water was not his tears. She would learn a bit about his other two companions.

Bakugo is the most prideful and skilled of the three. Always going off how he will be the best and rise the ranks among their kind. Shoto on the other hand seemed very calm out of the three. Almost to the point where he seemed indifferent about everything, though he takes everything very seriously.

Izuku would also learn a lot about her and her home in the great lake. How they knew many great magical treasures and plants within Atigus. It was just so fascinating to him, and it felt so nice to have someone discuss the magical phenomena with him.

As Y/n rested in Izuku's coils, a question came to mind.

"Hey Izuku, you've been so sad as of late. What is making you so sad?" Y/n asked.

"Um, it's a little embarring to talk about, but... The season of union is coming to an end soon. And during this time Nagas begin to pair and bond, and we bond for life. Sadly a girl I had my heart set in already bonded with someone else. So I may just end up being unpair," Izuku explained.

"What about Bakugo and Shoto?" Y/n asked.

"Well, most are annoyed or frightened by him, and would rather stay far away from him. And Shoto, has a bit of a hard time, umm, connecting to others," Izuku said slowly and awkwardly.

"Oh, well I'm sorry to hear that. I can't see why you would not find someone. Your sweet and so kind," Y/n smiled as she rested her harms on his coils.

Izuku's face turned a bright red as his tail tightened slightly. His heart fluttered in his chest as he stared down at his Oceanid friend.

"Y-you really think so?" Izuku mumbled, as his eyes watered.

"Despite your timid nature, you are willing to help though in need. Even if they may not deserve it," Y/n smiled up at him.

"Thank You Y/n," Izuku thanked as he cried waterfalls as hugged Y/n closely.

"Though you can be a bit of a cry baby," Y/n winced as she was drenched in tears.

But he didn't hear the last comment as he hugged her close.

----------------

"Shouldn't you be returning Y/n to the great lake, Surely she would like to return to her home and family," Izuku's friend Iida asked.

As the two patrolled the large Naga territory. Izuku's heart began to thump in his chest in a panic at the thought. The thought had many times came across his mind, but the thought of parting with her. Tore his heart apart.

-----------------

"Oh, you're still here?" Shoto asked as he entered the cave.

"Umm, have been for this past Month Shoto," Y/n said as she poked her head above the water.

"Izuku must hold you dearly if he hasn't returned you home yet," Shoto said as he found a comfy spot and laid down.

"Y-you think so?" Y/n asked nervesly.

"Hmm, don't you miss your family? I'm surprised you haven't asked him to return you," Shoto commented.

As Y/n studied him, she could feel something about those words. Like it wasn't just meant for you to answer.

"Are Nagas not close to their parents?" Y/n asked.

"Um, not all, but most," He said with a slightly sad look.

"What about you, if it's not too personal?" Y/n asked.

Shoto stayed silent for a time, as he slowly touched the burn on his face. " I could care less what my father is up to, but I... I do wonder how my mother is doing after she ran away from me and my dad," Shoto said sadly.

"W-why would she do that?" Y/n gasped.

"She said my left side and red scales looked too much like my horrible father. She burned the left side of my face and ran," Shoto answered as he covered his scar. " I was too horrible for her to look at."

Y/n frowned sadly at his story and pulled herself up onto the dry ground. She slowly approached Shoto's tail as she awed at his lovely scales.

"Your white scales shine like pearls, and the red ones look like rubies, your so lovely, Shoto," Y/n said in a soft tone.

Shivers ran up his spine as he felt the warm fingers slide across his scales. His heart pounded in his chest as he slowly coiled his tail around her.

"Y-you couldn't possibly mean that," Shoto said slowly.

"Of course I do. You know if you smiled more, maybe the ladies or gentlemen would flock to you," Y/n smiled.

"Flock? Like... Birds?" Shoto asked, really confused.

"No silly, I mean many would find you more approachable," Y/n laughed.

Her laugh was so small and cute, he could help but tighten his hold on her. He could feel her warmth on his scales as he slowly leaned in closer to her.

"If you're doing what I think you're doing, then you two are disgusting," Said a voice.

The two quickly turned to see Bakugo, who came back from a hunting outing. A large boar was slung over his shoulder as he entered the cave.

"Find a different part of the cave to suck each other's face," Katsuki grumbled.

"Why would we do that?" Shoto asked with pure confusion.

"Cause It's decent," Bakugo growled.

"No, why would we suck each other's faces?" Shoto asked again.

"I'm done with you," Bakugo scoffed.

_____________

Shoto and Izuku had to eventually leave to do a final scout turn, leaving Bakugo and Y/n. Bakugo had no interest in talking to the mermaid and did his own thing, by cooking the boar he caught. Y/n with nothing to do hummed to herself, her voice echoing off the walls of the cave.

"So you were the source of that voice," Bakugo said suddenly.

"Ummm... I was right next to you. How did you not know until now?" Y/n asked with a deadpanned look.

"No, every time around sunset I could hear something in the wind. A voice, singing," Bakugo said simply.

"Oh, I thought I was just singing to myself," Y/n said bashfully.

"More like to the whole forest," Bakugo huffed.

"Was I okay?" Yn asked slowly.

"You were definitely better than those harpies who think they can sing," Bakugo scoffed, turning away to hide his red ears.

"That is so sweet of you to say," Y/n said, slightly touched.

"Tch. Well, I don't really care for the noise of rain, you can keep doing what you were doing," Bakugo said slowly.

Y/n smiled at the tsundere naga and continued her song.

_________________

(3 weeks later)

Y/n and the three nagas grew closer and closer during the 3 weeks. The season of Union was quickly coming to a close, but tensions were high among the three males.

One morning, Shoto had his tail wrapped protectively around Y/n's sleeping form when he heard a soft but challenging hiss. Looking up sightly he could see it was Izuku. Izuku's usual large round pupils were now slits, as his serpentine tongue flicked between his lips.

"Yes, Izuku?" Shoto asked coldly.

"Your turn to patrol soon, maybe you should let her go now," Izuku said as nicely as possible, as he slowly inched closer.

Shoto tensed as Izuku slowly got closer. Shoto's pupils quickly turned to slits as he hissed back. Y/n was unable to sleep through the loud noises coming from the two.

"What's with all the noise," Y/n groaned sleepily, as she untangled herself from Shoto's coils.

"Would you shut it you two," Bakugo growled, as he pulled Y/n's sleepy form closer to him.

"B-bakugo, careful," Izuku hissed.

"I am," Bakugo said simply.

"Don't you both have someplace to be?" Izuku said with a slight hiss.

"W-what are you all fighting about?" Y/n asked, slightly more awake.

________________________

Pt.2 maybe?! I don't know