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ponderingmoonlight · 5 months ago

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Reader and Sanemi going from hating to marrying each other + meeting up with the Kamado family post infinity castle

Pairing: Sanemi x fem!reader

Word Count: 2,2k

Synopsis: Gosh, you hated that guy. Just the way the wind hashira talked to you pushed you over the edge far too often. Little did you know that you'll feel different about that hot-tempered man after everything is over, that you'll find yourself convincing your husband to meet the Kamado family...

Warnings: THIS IS SPOILER FREE Y'ALL, I wrote this without ANY spoilers in it, so none of the outcome is what actually happens in the manga like that (I actually aim for a spoiler-free blog so anime onlys don't have to worry, death of basically every other hashira, language, angst to fluff

Special thanks to cutie patootie @effetsecndaires for that super cute suggestion 🤍

„Me and that guy?“

„Yeah, there’s ain’t no way I’m working with that spoiled brat-„

„Who are you to call me spoiled, you prick-“

“Did you just call me prick you little-“

“Can you two just stop?”, Giyu mumbles under his breath, all pairs on eyes set on you and the wind hashira who is only inches away from your face by know.

God, how much you hate that guy. Since the first time you saw him beating up a bunch of innocent demon slayer to now where you literally feel his urge to slap you right into your face, you can’t stand him. Out of all skilled demon slayers, why does it have to be him? How did he even achieve the status of a pillar in the first place?

“Stay the hell out of it, Tomioka”, Sanemi barks at the water hashira in an instant.

“Stop acting like a jerk. Don’t you get that nobody will ever like you if you treat them like that!?”

“Not liking me? Look at you, (y/n). You’re a total loser.”

“Take that back right now!”

“That’s enough, stop already”, Gyomei finally speaks out.

Oh, you couldn’t care less about the stone hashira lifting himself off the ground or the thick tension that fills the air. Out of instinct, you yank towards, your fist aiming straight for his face. That little fucker will pay for every single insult, for every time he put you down-

“I said enough, (y/n).”

“Let go of me!”, you cry out when Gyomei catches you mid-air.

“You heard him, (y/n). Enough is enough”, Sanemi jeers at you with a slight grin.

Oh, how much you would have given to get teased by Sanemi Shinazugawa like that one last time. How desperately you wish you could turn back time to see all their faces again. When all of you arrived within the infinity castle, you knew you might not make it out alive, that some of your beloved friends will eventually never find their way out.

“Sanemi!”, you cried into the countless chambers around you, eyes aimlessly searching for the man your eyes locked with just seconds ago.

“(y/n)!”, he shouted from afar.

Where is he? Is he safe? What if you’ll never see him again? You swallowed hard, desperately trying to stop your dumb eyes from watering. What if…you’ll never see Sanemi again?

“Where are you?”

“Don’t you dare to die on me here!”, he yelled on top of his lungs.

Before eventually, he stopped replying. Before you faced countless demons on your own, all at once.

You would have never imagined that those crazy eyes you hated so much since joining the chosen circle of hashira would be the ones you’ll see last before your lifeless body collapses onto the floor.

“No, you can’t leave me like that. Not you too, (y/n). Get yourself together and fight!”, he hissed through gritted teeth while grabbing your body tightly.

“S…Sanemi?”

What a relief it was to fall asleep in his muscular arms.

And what a surprise it was to wake up with him by your side again.

“I’m so tired”, you mumbled before being able to even think straight.

Everything hurt. From your little toe to your shoulder, over your torso and your crushed leg. It feels like you just returned from a trip to hell.

“You’re awake.”

Don’t so familiar voice that suddenly sounds so soft and broken, that maniac orbs that suddenly turned…hurt. Is Sanemi Shinazugawa crying?

“Are you okay?”, you croaked.

What about the others? Are they safe? Did you make it? What about Muzan, the upper moons, Tanjiro and his sister? Your brain threatens to give him, a breathtaking wave of nausea close to hit you with full force.

“Dumbass, look at yourself first. Are you okay?”

Gently, he caressed your cheek with his bruised knuckles, forcing your heart to skip a beat. Is this really the Sanemi Shinazugawa you know and hate?

Hate?

You furrow your eyebrows. Did you really hate him those past few weeks when you sat together after training past after midnight? Did you really hate him when fighting against those demons, when he was all you were able to think about? When on earth did you start un-hating him?

“I’m fine…But…the others?”

Just the way he shakes his head in defeat is enough for you to know. You swallow hard. All the people you loved…Mitsuri who always braided your hair, Shinobu always stitched you up after another fight with Sanemi, Giyu who always scolded you for acting out like that. Tanjiro, Nezuko, Gyomei, Obanai, Muichiro…Are all of them gone?

Suddenly you fail to breathe. Your friends, your found-family.

Everything’s gone.

“Hey, don’t panic.”

Did they suffer? How many people were forced to die in that senseless war?

“Look at me, (y/n).”

You can’t catch your breath, shaky hands clinging onto Sanemi’s sleeve for what feels like dear life.

“(y/n).”

He grabs your face with both of his hands. And all of the sudden, everything around you starts to get calm.

“It will be alright. Not today, not even tomorrow or next week. But we’ll get through this together.”

“I hate you”, you breathe out while getting lost in the new-found peace his eyes radiate.

“I hate you too”, he mumbles.

Why do his lips suddenly look so inviting, roaming closer and closer? Why do you enjoy the way he holds your face in place with his rough hands, how he stares at you in distress?

But there’s something apart from distress, a new-found feeling you’ve never seen before.

“More than anything else”, you add.

“Absolutely, yes.”

And then his lips crash into yours. Longingly, almost desperate Sanemi Shinazugawa kisses you with every fiber of his being, allows his body to finally give him. He never allowed himself a single positive thought when it came to you, always hated every minor thing you did. Until the infinity castle made him realize what he truly feels for you, that he needs to catch a taste of your forward lips before it is too late.

That was exactly one year ago.

“What’s on your mind again?”, Sanemi mumbles into your hair while staring into the sunset and holding you tight.

“Oh, I was just thinking about how much you hated me back then”, you chuckle.

What a relief it is. Being able to watch the sunset without fearing the night. Being able so live another day with your husband by your side.

Your husband, Sanemi Shinazugawa.

“I wonder what they would think, seeing us like that”, Sanemi comments dryly.

“Oh, they wouldn’t believe us.”

“Absolutely not, nah.”

“But I bet they’d be proud, right? I’m sure it’s fine that we’re doing okay…”

“You’re talking nonsense again, (y/n). Why would they ever be mad at us for living our lives?”

“Because they couldn’t.”

You swallow the lump that forms itself deep in your throat down. Not a single day went by without you thinking about your comrades. How they always had to keep the two of you separated, how much fun you’ve had despite the circumstances.

But now, there’s only you and Sanemi left. And Tanjiro Kamado.

“I think we should pay the Kamado family a visit”, you add before thinking about it any further.

To this day, Sanemi refused to meet up with Tanjiro and his sister. Maybe because he still hates the boy with the scar, maybe because seeing Tanjiro means being confronted with his past all over again. Over and over, you begged him to go, to make sure both of them are doing alright.

“Didn’t I say no 100 times already?”, Sanemi grumbles behind you.

“Well, you said you hate me at least 100 times as well and still, I’m here”, you bite back.

Sanemi shifts his weight, his muscles tense behind your back. You know too well that this isn’t easy for him, that seeing Tanjiro means getting confronted with a part of his past he’s so eager to forget. But the Kamado family never gave up their hope, always keeps their doors open if Sanemi does decide on meeting them someday.

“That’s not the same, idiot.”

“Sanemi.”

You turn around and cup his face gently with both hands.

“Maybe you should pay him a visit. We didn’t see him in a long time.”

“Why would I care though? It’s not like I liked that kid at one point”, he barks back at you.

You let out your breath. Despite the fact that infinity castle made both of you softer, Sanemi still didn’t lose his stubbornness and attitude. Well, so did you.

“You wanna act like an asshole? Go ahead, then. I’ll leave tomorrow morning, with or without you.”

Without another word, you get up and make your way back into the house. How frustrating living with him can be. But still…The past is scarry, maybe even too much too bear. After today, you won’t speak up about visiting the Kamado family again.

-the next day-

“Nezuko!”

She doesn’t hear you. The girl with the wavy black hair tied into a knot, her tender eyes focused on the garden in front of her feet. How breathtakingly gorgeous she is, a true beauty just like back then.

“Nezuko!”, you cry out again, waving at her like an idiot.

Back then, she saved your life by almost sacrificing her own. Even though you weren’t as kind as the other hashiras, the Kamado family always stood by your side and believed in you. Seeing her so unbothered and happy forces a wave of tears up your eyes, makes your vision go foggy.

Thanks to your comrades, all of this is over now.

“(y/n)!”, the girl finally greets you while mindlessly dropping her sickle and dashing towards you.

“(y/n), is it really you? I can’t believe it!”, Nezuko breathes out.

“Yeah, the original”, you giggle.

She still wears the same patterns she did back then. But her eyes, they look so different. Nezuko really is fully human again. You can’t stop a single tear rolling down your eyes. And all of this, only due to the sacrifice of your friends.

“No, don’t you cry, (y/n)! Not when both of us should be happy”, Nezuko croaks out, a thin coat of tears now covering her very own eyes.

“Those are happy tears. I’m so sorry for not visiting you sooner, it’s just…”

Yes, what is it? Did you hesitate because Sanemi wasn’t ready, because he refused over and over to accompany you? No, you yourself needed that time to heal, to get over all the terror and suffering you’ve been through.

“You don’t have to apologize at all. After all, Tanjiro and I needed some time to adjust to this new life as well. Do you mind me asking how Shinazugawa-sama is?”

“Sanemi? He’s doing okay. But he isn’t ready yet…”

“Of course, I get that! But there’s no need to rush, right? After all, we now have plenty of time left”, Nezuko replies with that oh so gentle grin plastered onto her face.

“(y/n), is that you?”

Your heart skips a beat. Oh, you’d recognize that voice from everywhere with its unwavering optimism and tender undertones.

“Long time no see, Kamado Tanjiro.”

In the matter of seconds, you find yourself embraced into a tight hug, surrounded by nothing but the signature ichimatsu pattern that burned itself into your brain.

“Oh my, I’m so sorry for casually hugging you like this, (y/n)-sama!”, he adds in a haste, quickly letting go of you and bowing.

“I’m not a hashira anymore, Tanjiro. And both of us are equal. Well, now that I think of it, I should be the one who bows in front of you”, you contradict jokingly.

“It’s so nice to finally see you again! How are you?”

“I’m doing alright. Sanemi and I, we worked quite hard to renovate his estate after what happened. These past few months, we enjoyed watching the sunsets for the very first time in ages”, you explain briefly.

“I couldn’t believe my ears when I heard that the two of you married. It makes me beyond happy you found your luck, (y/n).”

“Don’t you dare making my wife cry, brat.”

Your eyes widen, heartbeat instantly picking up. You’d recognize that voice out of a thousand people. When you turn around, you get greeted by the annoyed expression of none other than your husband.

“Sanemi”, you breathe out.

Did he follow you? When did he decide on meeting the Kamado’s? You’ve been bugging him for ages, almost begging him to pay Tanjiro and Nezuko a visit.

And now he stands there, arms casually crossed in front of his chest.

“Shinazugawa-sama, what a honor-“

“Spare me with that bullshit”, Sanemi interrupts the boy immediately.

“Just tell me how you’re doing.”

Oh. Your eyes threaten to overfill with joy all over again, Sanemi’s arm now wrapped around your waist tightly. Just 2 years ago, you didn’t even think about the possibility to even like Sanemi, to look after the Kamado’s.

But this is your life now. Your oh so sweet life.

“You might have been right. Maybe this isn’t so bad after all”, Sanemi whispers into your ear.

“So, does that mean you finally don’t hate me anymore.”

“That’s a bit out of line, Kamado. You’re still a brat, after all.”