#yumaosa

[watori-fics]

What do you mean in 2025 Jump Festa we can marry any tamakoma agents of our choice?? Um, I’ll have multiple brides and grooms please I want all of them

oh wait, they’re marrying each other? Oh that’s absolutely fine too

[agentyuuma]

During the 2 week isolation ark, Yuma stays in bed, anxiously wondering what Osamu's doing. He knows,logically, that the four eyed captian is likely sleeping.

He tries not to feel bitter at the fact someone else is probably sharing a room with him,, Something they started doing after sharing Trion, Osamu claiming that it helps him sleep better. Yuma made no objection, happy to be by the captians side, warmer than he's every felt before.

He couldn't sleep, his Trion body wouldn't allow it but being next to a sleeping Osamu, Yuma figures this is just as good.

Sharing a blanket, feet tangled, fingers rubbing back and forth softly against the sleeping mans skin as soft blue glows, trion spreading from yuma to osamu, humming softly. Osamu who trusts him enough to allow Yuma to see him at his most vulnerable state.

Yuma bites his nail, sitting on the bed that feels way too big, even though it fits him perfectly. His feet anxiously rubbing together.

He wonders if Osamu's sleeping well, he wonders if Osamu's feeling cold too, not having Yuma on the other side, pulling him closer, till his face tucks snugly against his neck, hearing the soft breathing of the man he's grown fond off, feeling his body relax deeper against him.

He wonders if Osamu's thinking of him too.

He tells himself probably not.

The test has had them busy at all hours of the day, Osamu's probably too focused to think of him.

But Yuma hasn't stopped thinking of him since they separated.

2 weeks without waking up next to Osamu, hearing that groggy, sleepy voice tell him good morning, watching green eyes adjust to the morning light, shining under the sun's soft rays, those lips he's dreamed of kissing spreading into such a soft smile it has yuma's heart doing Backflips.

Hands squeezing his as he asks, "Did you sleep well, Osamu?"

Oh. He misses him. Bad.

He can't wait for these 2 weeks to be over. To find himself in his captains arms again, till the smell of comfort engulf him.

He sighs, throwing his head back on the pillows.

"...the beds too big."

[nenedara]

Yumaosa is such a gorgeous cp...

[uesugirondo]

My WT ships

TachiJin / AraJin / ToriJin

YumaOsa / HyuOsa / RinjiOsa / ToriOsa / NinoOsa / OjiOsa

ToriIzu / NinoIzu / YoneIzu / HyreIzu

KageInu / YubaInu / TsujiInu

RinjiNino

YuzuChika

Miwa and Sleep

Nasu Squad (do I even need to explain?)

.

Honorable Mentions:

Shinoda and Sawamura

Katori and Hana

Rokuro and getting his sh1te together

[agentyuuma]

Fic idea:

Where Yuma comes from, Trion sharing could be considered an intimate act, depending on the circumstances, almost like a claim or a marriage. However, on the battlefield, it's nothing more than to pick a comrade up.

So when Osamu suddenly asks him to share trion, he's flushed and embarrassed, telling Osamu that he pretty much asked Yuma for his hand in marriage.

Embarrassed, Osamu waves him off, telling him it's for training purposes.

But it slowly becomes a habit, sharing Trion together.

Till it becomes a thing they do, a unconscious habit, unaware that Trion sharing also ties to compatibility with your partner.

The stronger the feelings, the stronger the sensations, till it sometimes feel like their love sick fools.

Shivering at their first transfer, Osamu telling Yuma how cold it feels. Yuma laughing. "I don't produce much body heat."

Till every touch of their pinkies, Trion transfered, mingled, till it became a warm stream of comfort, safeness and a sense of selfless.

If Osamu had to describe Yuma's Trion is was, independent, strong, protective, and so, so warm.

Till pinkies weren't enough,to yumas feet sitting in Osamus lap, face shoved in his phone, mindless scrolling, only to focus on the sensation of Trion flowing through his legs.

Hes always felt the engery of his own Trion that hasn't stopped flowing for years but this, this was different. He'd never be able to explain it. It's was just so,,,Osamu.

Yet, neither have them have realized it runned deeper than the Trion.

But when their teams get mingled for the away missions, forced away from each other for 2 weeks in the first phase of the testing, why is that feeling still there?

When they haven't seen, heard or touched each other in 2 week?

And why, does his own Trion feel so..lonely?

[watori-fics]

Unspoken Weights

Pairing: Kuga Yuma/Mikumo Osamu & Tachikawa Kei/Jin Yuuichi Summary: Post-Aftokrator Invasion. In moments of hidden pain, Osamu and Jin confront their struggles in silence, each unknowingly seeking relief. Yuma and Tachikawa, their silent yet steadfast counterparts, step in with understanding—offering not words but actions. Through quiet, deliberate care, they ease burdens too heavy to bear alone, bringing much-needed solace to the ones they cherish. Note: Both the sketch and texts have been sitting in my notes for long and idk anymore so im sorry just gonna post this as is… Been wanting to write parallels like these… not satisfied with them at all but idk i give up…………… been thinking about this so much i got confused

The house was still, faint moonlight filtering through the curtains and casting pale patterns across the room. Osamu lay on the bed, his breathing uneven, the soft rustle of sheets the only sound.

The aftermath of the Aftokrator invasion had left him battered—deep wounds, a week-long coma, and a slow, stubborn recovery. He was home now, but far from fine.

At Kasumi Mikumo’s insistence, Yuma stayed the night to keep an eye on him. She’d spread a futon beside Osamu’s bed, unaware Yuma’s trion body didn’t need sleep. He didn’t correct her, lying quietly on the futon and staring at the ceiling as the hours dragged by.

Sometime after midnight, a low groan broke the silence. Yuma sat up instantly, his sharp gaze turning to Osamu.

Read More

[watori-fics]

Eating Dinner with the Actual Strongest in Mikado City: Super High-pressure Member of the Mikumo Family

Characters / Pairing: Mikumo Kasumi, YumaOsa (Kuga Yuma | Mikumo Osamu) Summary: A short story about Kasumi, Osamu, and Yuma meeting near the supermarket and how Kasumi ropes Yuma into having dinner with them. Note: Enjoy!

Kasumi Mikumo is indeed Osamu’s mom, and despite being younger-looking and stunningly attractive, her defining trait is her deadpan expression and demeanor, which can intimidate even the most confident individuals. She has an unwavering gaze that can pierce through anyone’s resolve, and she’s not one to back down from what she wants. Despite her calm exterior, she’s always been driven, direct, and utterly unapologetic about pursuing her goals.

One such goal was Osamu’s father! According to the backstory, Kasumi was laser-focused on him from the moment they met at university. Noticing his kind nature and quiet charm, she decided right away that he was "the one." While others might take time to weigh their feelings or approach things cautiously, Kasumi wasted no time. After successfully graduating university, she reportedly put intense pressure on him, using her natural tenacity and straightforwardness to secure their marriage.

Their relationship, much like her personality, is both practical and straightforward. She knew what she wanted, and she went after it with full force, much to the amazement (and slight terror) of those around them. Kasumi’s personality can have a strong effect on anyone she meets, including Osamu’s Border friends!

------

It was an ordinary afternoon when Osamu and Yuma finished their classes and headed out, bags slung over their shoulders. Yuma had been talking animatedly about a new technique he was trying out in combat, while Osamu nodded along, eyes scanning the streets out of habit.

As they neared the local supermarket, a familiar figure caught Osamu’s eye. His stomach dropped when he saw none other than his mother, Kasumi Mikumo, standing near the entrance with her signature deadpan expression, staring straight at them.

"Ah… Kuga, we should—" Osamu started, but it was too late.

"Osamu." Kasumi’s calm yet authoritative voice cut through the air like a blade.

Yuma looked up, eyes curious. "That’s your mom, right?"

Osamu nodded reluctantly. "Yeah… she is."

Yuma waved cheerfully, completely unfazed. "Hi, Osamu’s mom!"

Kasumi’s gaze shifted to Yuma, her piercing eyes studying him for a brief moment before she spoke. "Yuma Kuga, isn’t it?" Her tone was as matter-of-fact as ever. She turned to Osamu, "You didn’t tell me you’d be walking home with a friend."

Before Osamu could respond, she had already made her decision. "Since you two don’t have Border shifts today, you’ll both join me for dinner."

Osamu’s eyes widened in horror. "Mom, you don’t have to—"

"Kuga-kun's coming," Kasumi said decisively, her eyes on Yuma, who blinked before grinning.

"Sure! I’d love to."

Osamu silently cursed his mother’s ability to control the situation so effortlessly. He knew once she decided something, there was no changing it.

At the Mikumo household, the smell of freshly cooked cream croquettes filled the air, and Osamu was already internally panicking about what might unfold. He sat at the table, nervously glancing at Yuma, who was already chatting with his mom like they were long-time friends. To Osamu’s surprise, Yuma was actually polite and well-mannered, handling Kasumi’s subtle intensity like it was nothing.

As they sat down to eat, Kasumi took the opportunity to drop the first bomb. "Osamu’s favorite food is cream croquettes, you know. I’ve been making these for him since he was little."

Yuma’s eyes brightened with genuine interest. "Really? I had no idea. Osamu, you should’ve told me. They’re really good!"

Osamu’s face turned pink. "It’s not that important…"

But Kasumi wasn’t done. "He used to cry if we didn’t have them at least once a week."

"Mom!" Osamu sputtered, trying to sink into his chair, wishing the ground would swallow him whole. Yuma, on the other hand, looked like he was having the time of his life.

Kasumi continued as if she didn’t notice her son’s distress. "He’s always been such a serious boy. Even in elementary school, he’d come home, do his homework right away, and then organize his room."

Yuma gave Osamu a teasing grin. "Wow, Osamu, you’ve always been so diligent, huh?"

Osamu mumbled something unintelligible, his face growing redder by the second.

As they ate, Kasumi told more "fun facts" about Osamu—like the time he accidentally fell into the pond at the local park because he was too focused on reading a book, or how he insisted on bringing an extra umbrella to school just in case someone else forgot theirs.

Yuma was having a blast, laughing at each story, while Osamu was dying of embarrassment, trying to deflect the attention back to anything else.

By the time dinner ended, Yuma was full, happy, and thoroughly amused. "Thanks for the meal, Kasumi-san. It was amazing!"

Kasumi nodded. "Come by anytime, Yuma. You’re always welcome. And Osamu, make sure to see him to the station."

"I know." Osamu replies. He's worried about Kuga's sense of direction without Replica, anyway.

As Yuma and Osamu headed out the door, Kasumi gave her son one last look. "Don’t forget, Osamu, for every friend you bring to visit our home, I’ll be making more cream croquettes for you."

Osamu groaned, knowing Yuma wouldn’t let him live any of this down. But as they walked down the street, Yuma smiled. "Your mom’s pretty cool, Osamu."

Osamu sighed. "Yeah… she’s something."

And though he wouldn’t admit it, deep down, he knew Yuma was right.

----------

Note: Yuma and Kasumi, by the end, are already on a first-name basis. Gotta hand it in to Yuma's communication skills and Kasumi's ultra high pressure......

[watori-fics]

Afternoon Nap (Osa/Yuma)

Pairing: Mikumo Osamu / Kuga Yuma

Note: Yuma got his normal body back with the black hair and now can grow and sleep

It was an unusually quiet afternoon at HQ. The sun had peaked, casting a warm, golden glow over everything, making the entire building feel sleepy. Most of the agents had taken advantage of the lull in activity to rest, and Osamu found himself wandering the halls, in search of his teammates.

He peeked into the Tamakoma dormitory’s living room, and there, sprawled out on the couch, was Yuma. A light breeze from the open window ruffled his now black hair, which Osamu still wasn’t used to seeing after so long with the snowy-white trion body. Yuma, who once couldn't rest at all due to the limitations of his old body, was now asleep — softly, peacefully.

Osamu smiled. It was rare for Yuma to nap, much less so comfortably. His small frame seemed even smaller curled up on the couch, his chest rising and falling rhythmically, the picture of contentment. He looked so much more like a normal kid now, without the perpetual energy and alertness he carried when he was in his trion body.

Without thinking, Osamu approached quietly and sat on the edge of the couch, his gaze softening as he looked down at Yuma. His friend had been through so much, enduring a life that forced him to constantly be on guard, unable to sleep properly or feel comfortable in his own skin. But now, in this body—his regained, real body—Yuma was finally at peace.

Gently, Osamu reached out, his hand hovering for a moment before he softly brushed Yuma’s hair away from his face. The strands were soft, unlike the cold and synthetic feel of his trion form. Osamu’s hand lingered on Yuma’s head, carefully, like he was afraid to disturb this rare, tender moment.

Yuma stirred slightly, but didn’t wake. Instead, his face seemed to relax even more, a soft, almost imperceptible smile tugging at his lips. It was something so small, yet it filled Osamu’s heart with warmth.

Yuma had always been there for him, protecting him in every battle, using his overwhelming strength and quick reflexes to make up for what Osamu lacked. But here, in this simple moment, Osamu felt like he could give something back. Even if it was just ensuring Yuma could sleep soundly, it made Osamu happy.

His fingers continued to gently caress Yuma’s hair, tracing the edges of his jawline before stopping. Yuma, so unguarded now, looked like the young boy he was—just another 15-year-old, instead of the battle-hardened Neighbour warrior he had become.

“You’ve really come far,” Osamu whispered, his voice low, almost afraid to break the tranquility.

Yuma’s eyelids fluttered slightly but didn’t open. Osamu chuckled under his breath, watching his friend with a sense of affection that ran deeper than he could express. It wasn’t often he got to see Yuma in such a vulnerable state, and it reminded him of all the battles they had fought, how hard Yuma had worked to get his real body back.

For once, it felt like things were good. Peaceful. Even in the chaos of Border, of the battles they faced, there was this—these small, cherished moments of calm, of warmth.

Osamu leaned back slightly, careful not to wake him, though he couldn’t resist one last affectionate touch, letting his fingers graze through Yuma’s hair one more time.

“I’m glad you’re here,” Osamu said softly, his voice full of warmth. And in that quiet afternoon sun, with Yuma asleep and finally at ease, Osamu allowed himself to just... be happy.

They had faced so much together, and there was still so much more ahead. But for now, this was enough.

——

[watori-fics]

Tamakoma Lounge Chaos: Yuma’s Puberty Question

Pairing / Characters: YumaOsa (Kinda?) Jin | Kyousuke Karasuma(Torimaru) | Hyuse Summary: Yuma somehow gets his normal body back with black hair and his body can grow now! But then everyone forgets he’s in puberty, and chaos ensues when he says, "There was white pee coming out!" Note: Sorry, I guess. I need to get this out of my system.

The peaceful atmosphere in Tamakoma's lounge was serene. The boys and men of the squad were enjoying their drinks — Osamu with his usual coffee, Karasuma-senpai sipping his tea, Jin lounging lazily with a bottle of something cold, and even Hyuse sitting nearby, as aloof as ever, pretending not to listen in. The TV buzzed softly in the background, filling the silence.

Yuma, in his newly regained normal body — with black hair and now in the awkward middle of puberty — had been fidgeting next to Osamu for a while since he woke up this morning. His expression was deep in thought, and Osamu noticed Yuma's eyebrows furrowing.

“Something wrong, Kuga?” Osamu asked.

Yuma looked up innocently, his voice clear and direct, “Hey, Osamu, I had a dream about you, and when I woke up, there was white pee coming out. What’s that about?”

SPURT. Everyone who had a drink in hand simultaneously spat it out in every direction. Jin choked on his iced tea, coughing as if he'd inhaled a bee. Torimaru's face turned beet red, desperately trying to maintain his calm demeanor but failing as he sprayed his tea across the table. Osamu's cup tumbled from his hand, hitting the floor with a clatter.

Hyuse, for once, was utterly speechless, his eyebrows twitching as he turned his head to look at Yuma, his usual poker face cracking for a moment. Even he couldn’t hide the shock.

Jin, still coughing and half-laughing, managed to wheeze, “Oh… oh man, that’s… that’s priceless.”

Torimaru, blushing like he had never blushed in his life, stammered, “Y-Yuma, um… maybe… maybe ask Osamu… in private... for that.”

But the damage was done. Osamu's face had turned bright red. He tried desperately to control the situation, waving his hands in front of Yuma. “Ah, Kuga! That's, uh... It's something normal! It happens! It's… I’ll explain later!” His voice cracked with the strain of his own embarrassment.

Yuma tilted his head, completely unfazed, as if this were just another normal part of conversation. “Huh? What do you mean ‘normal’? It just came out of nowhere. Is it like when I transform into my trion body?”

Jin, at this point, was doubled over in laughter. “Oh, oh no, no, it's not like that at all. Osamu, you should definitely handle this.” He wiped tears from his eyes.

Hyuse, finally recovering from his shock, muttered under his breath, “I can’t believe I’m stuck with these idiots.”

Meanwhile, Torimaru was trying his hardest to disappear into his chair, utterly mortified. He’d trained in battle, faced down Neighbors, but this? This was a battle he wasn’t prepared for.

Osamu, knowing the explanation would be worse the longer it took, grabbed Yuma by the shoulders and stood up abruptly. “Alright! We’re going! Let’s… uh… talk about this somewhere else, okay?”

As he dragged Yuma toward the door, Yuma protested, “But Osamu! I still don’t get it! It’s not like my trion's leaking, right? Can we ask Torimaru-senpai? He knows a lot about bodies and training, maybe he—”

“No! No! Karasuma-senpai is busy! Let’s go!” Osamu hurriedly pulled Yuma out of the room, his face nearly purple with embarrassment.

Back in the lounge, Jin finally calmed down enough to catch his breath, grinning from ear to ear. “Man… I haven’t laughed that hard in ages.”

Torimaru rubbed his temples, his face still flushed, “I never thought I’d be part of this kind of conversation.”

Hyuse, sighing dramatically, reached for his drink again. “You meedens are a ridiculous species.”

[watori-fics]

Yuma's Laundry Lessons

Characters / Pairing: YumaOsa (Kuga Yuma | Mikumo Osamu) Summary: A lighthearted moment between Osamu and Yuma at the Tamakoma dorm, focusing on Yuma teaching Osamu about doing laundry. Note: Enjoy!

The late afternoon sun streamed through the windows of the Tamakoma dorm, casting a warm glow on the common area where Osamu and Yuma found themselves. After a long day of training, it was time to tackle the pile of laundry that had accumulated over the week.

Osamu stared at the washing machine, brow furrowed in concentration. “So, uh… how exactly does this thing work again?” he asked, glancing over at Yuma, who was already sorting through the clothes.

Yuma chuckled, a teasing smile spreading across his face. “You really don’t know how to do laundry, do you?” he replied, holding up a shirt. “Here, let me show you.”

With practiced ease, Yuma started sorting the clothes by color, separating whites from darks. Osamu watched closely, trying to absorb every detail. “I guess I never had to learn. My mom always took care of it,” he admitted, a hint of embarrassment creeping into his voice.

“Well, it’s about time you learned something new,” Yuma said with a playful grin. “Even if I’m the one teaching you this time.”

Osamu laughed lightly, shaking his head. “Thanks, Kuga. It’s funny how you’re the one teaching me things for a change.”

“Eh, it’s fresh seeing you not in the teacher role for once,” Yuma replied, nudging Osamu with his elbow as he tossed a handful of clothes into the washing machine. “Now, come on. Help me out here.”

As they worked side by side, Yuma guided Osamu through each step, explaining how to measure the detergent and set the correct cycle. “You want to make sure you don’t overload the machine,” he said, demonstrating with a few clothes. “Otherwise, it won’t clean properly.”

Osamu nodded, impressed. “I never realized there was so much to it. I thought it was just… throw it all in and hope for the best,” he confessed.

Yuma smirked. “You’d probably end up with a bunch of pink clothes if you did that. You don’t want to wear my color, do you?”

“Definitely not!” Osamu laughed, shaking his head. “I’ll stick with my usual boring colors, thank you very much.”

Once they had everything loaded, Yuma leaned against the machine, crossing his arms. “Now we wait for it to finish. So, what do you want to talk about?”

Osamu thought for a moment, then said, “You know, it’s kind of nice to have this time together. We usually focus on training, but it’s good to do something normal, too.”

Yuma nodded, a small smile on his face. “Yeah, I get that. It’s nice to relax and just hang out. Plus, I’m glad I could help you learn something new.”

“Thanks again, Kuga. I appreciate it,” Osamu said sincerely, looking over at Yuma with a grateful expression.

“Anytime, Osamu. Just remember, next time I need to teach you how to cook or something,” Yuma replied, a cheeky grin forming.

“Let’s not get ahead of ourselves!” Osamu laughed, playfully pushing Yuma’s shoulder.

As they waited for the laundry to finish, they exchanged jokes and stories, enjoying the camaraderie of their unusual but meaningful moment. It was a refreshing change of pace for both of them, strengthening the bond they shared as friends and teammates.

[nenedara]

My blue-haired babies~