Under the Jersey

The gym was loud. Too loud. The squeak of shoes, the thump of volleyballs, the crowd screaming—it all blurred into a wall of noise that hit Atsumu square in the chest. Spring High semifinals. One win from the finals. One step closer to that banner they'd been chasing since their first year.

He loved this. Lived for it. The sweat on his skin, the weight of the ball in his hands, the way everything went quiet in his head the second he stepped on the court. He was the best setter in the country. He knew it. His serves broke spirits. His sets created miracles. His confidence was a weapon.

But confidence needs a foundation. And foundations can crack.

"Hey, Miya."

Kuroda—the other team's ace—slid up to him during a break in warm-ups. Tall, broad-shouldered, with a smile that looked friendly if you weren't paying attention. But his eyes were wrong. They crawled over Atsumu like something greasy.

"Heard you had surgery on your chest when you were a kid," Kuroda said, low enough that nobody else could hear. "Got some nasty scars under that jersey, don't you? Must be hard strutting around like a peacock when you're all messed up underneath."

Atsumu's heart stuttered. His hand twitched toward his sternum, where the pale, puckered scar from childhood sat hidden under his uniform. Pectus excavatum. The surgery at five fixed the physical problem, but the psychological scars? Those stuck around. He'd spent years hiding insecurity behind arrogance, being so loud and talented that nobody looked too close.

He forced a laugh. "Don't know what you're talkin' about." His voice came out rougher than he wanted. "Worry about yer own game, yeah?"

Kuroda's smile widened. "Oh, I am. I'm very focused on the game. And on you."

Whistle blew. Match started.

First few points were a blur. Both teams came out swinging, trading kills and blocks in a brutal back-and-forth. Atsumu's hands were steady—crisp sets, perfect timing. He fed Suna a quick that sliced through the block. Launched a back set to Ginjima that scored clean. For a few glorious minutes, he forgot about Kuroda entirely.

Then came the play.

Atsumu released a set to Osamu on the right. The ball was in the air. He was moving to cover the tip. And then he felt it—a hand sliding across his chest, fingers dragging deliberately over his nipple, then lower, grabbing his ass with a squeeze that was unmistakably sexual.

He froze.

The ball came down on their side. Point, rival team.

"Sorry!" Kuroda called out, already jogging back. "Lost my balance there, Miya! My bad!"

Atsumu's face burned. His chest felt tight, like the scar tissue was pulling, constricting his lungs. He couldn't breathe. He couldn't think. That touch was so quick, so deliberate, and nobody saw it. The ref was watching the ball. The crowd was cheering. Even his teammates were too focused on the next rotation to notice he'd gone rigid.

"Atsumu!" Osamu's voice cut through. "Snap out of it! We gotta rotate."

Atsumu blinked. His twin was staring at him from across the net, puzzled. Osamu could always read him, but even he seemed confused by this sudden paralysis.

"Fine," Atsumu managed. "I'm fine."

He wasn't fine.

Next few minutes were a disaster. His setting went erratic—a high ball drifted wide, a quick was too low, Ginjima scrambling just to touch it. His usually flawless receives turned into fumbled passes that careened into the stands. He missed a dig he could've made in his sleep, and when the ball hit the floor, he just stood there, staring at his hands like they'd betrayed him.

Timeout, Inarizaki.

Coach Kurosu gathered them. "What's going on, Miya? You're off your game."

Atsumu opened his mouth. Nothing came out. How could he explain? How could he stand in front of his team—his brother—and admit someone touched him, that he was falling apart over a few seconds of unwanted contact?

"I got it," he said, the lie tasting like ash. "Just a rough patch. I'll shake it off."

But as they broke the huddle, Kuroda passed him again.

"Told you," the other player whispered, his breath hot against Atsumu's ear. "You're all messed up. And after the match, I'm gonna find out just how messed up you are. Maybe I'll get you alone in the locker room. Show you what a real man feels like."

Atsumu's hands started shaking.

The serve came in. He received it, barely—a high, wobbling pass toward the setter position. But he wasn't the setter right now. He was a scared kid again, lying on an operating table, staring at ceiling lights while strangers cut into his chest. He was thirteen, hiding in the locker room because some older kid made a comment about his body he couldn't stop replaying. He was all the versions of himself who had ever felt exposed, vulnerable, small.

The rally continued. The ball came to him again. He should set it. He was the setter. This was his job.

Instead, he dropped the ball.

It hit the floor with a dull bounce. The gym went quiet. Atsumu stared at the ball rolling away, and then the tears came—hot and sudden and completely uncontrollable. He pressed his hands to his face, but they spilled through his fingers anyway, and a sob tore out of his throat that echoed through the silent gymnasium.

"Substitution." Coach's voice, distant. "Miya. Atsumu. Off the court."

Hands guided him to the bench. Someone—a first-year setter, he barely registered who—took his place. Atsumu sat down heavily, chest heaving, tears still streaming. The roar of the crowd returned, but it sounded underwater. His teammates looked confused, concerned. The coach was saying something he couldn't hear.

He'd never felt so humiliated.

On the court, Osamu watched his twin being led away like a wounded animal, and something cold settled in his stomach.

He'd known something was wrong. From the very first point, he'd seen the way Atsumu's movements lost their fluidity, the way his shoulders crept up toward his ears, the way his eyes kept darting to the side like he was looking for an escape. Osamu knew his brother. Every tell, every micro-expression, every subtle shift in posture that signaled what Atsumu was feeling. And right now, Atsumu was terrified.

But why?

His eyes scanned the opposing team. And then he saw it—the smug, satisfied smirk on Kuroda's face as he watched Atsumu crumble. The way his gaze lingered on the bench. The way he licked his lips.

Osamu's vision went red.

He didn't show it. He never showed it. That was his thing—the calm, collected twin who never got angry, never lost his cool, never let his emotions get the better of him. That was how he'd always defined himself against Atsumu's fire and chaos. He was the steady one. The rational one.

But right now, rationality was a distant memory.

The next serve came in. Osamu took the approach hard, launching himself into the air for a quick set from the first-year. The ball hit his hand like a bomb, blasting past Kuroda's block and slamming into the floor so hard it bounced all the way to the back wall.

Point.

He didn't celebrate. Just turned and walked back, eyes fixed on Kuroda.

The game continued, but something shifted. Osamu became a wall at the net—an impassable, brutal, vicious wall. Every time Kuroda went up for a spike, Osamu was there, his hands meeting the ball with a thunderous thwack that sent it rocketing back. He blocked three spikes in a row, each more powerful than the last, and each time he stared at Kuroda with an expression utterly devoid of warmth.

During a break in play, as both teams switched sides, Osamu made his move.

He found Kuroda near the net, pretending to adjust his knee pads. Other players distracted, ref's attention elsewhere. Osamu stepped close, close enough that his breath ghosted across Kuroda's ear.

"I saw you," he said, voice low and flat. "Touching my brother."

Kuroda's head snapped up. "I don't know what you're—"

"Shut up." Osamu's hand shot out, grabbing Kuroda's wrist and squeezing just hard enough to make him wince. "You think nobody saw? I saw. And if you ever—ever—touch him again, I will break your hands. I'll break them so bad you'll never hold a volleyball again. I'll break them so bad you won't be able to wipe your own ass. Do you understand me?"

Kuroda's face went pale. He tried to pull away, but Osamu's grip was iron.

"I asked you a question." Osamu's tone didn't change. "Do. You. Understand. Me?"

"Y-yeah. Fine. I get it."

Osamu released him and stepped back, his face smoothing into its usual mask of indifference. "Good."

He turned and walked away. But inside, his heart pounded with a fury he'd never known he was capable of.

Halftime arrived with Inarizaki down by two sets. The team filed into the locker room, and Osamu watched as Atsumu detached himself, slipping away toward the small equipment room attached to the main locker area. He followed without a word, shutting the door behind them.

The equipment room was cramped—carts of volleyballs, bins of kneepads. Atsumu sat on a bench in the corner, head in his hands, shoulders shaking with silent sobs. His gold jersey looked garish under the fluorescent lights. His usually styled hair was a mess, falling into his face.

Osamu stood in front of him for a long moment, just watching. Then he sat down beside him.

"Hey," he said. His voice wasn't soft—it never was. But there was a weight to it, a carefulness he reserved only for his brother. "What was that?"

Atsumu's laugh was wet and broken. "What was what?"

"That. The crying. Dropping the ball. The..." Osamu hesitated. "The look on your face when that guy was near you."

Atsumu's hands fell from his face. His eyes were red-rimmed, cheeks stained with tears. The vulnerability in his expression was so raw, so unlike the arrogant setter who usually dominated the court, that it made Osamu's chest ache.

"He touched me," Atsumu whispered. "During the match. He... he grabbed my chest. My ass. Right in front of everyone, and nobody saw. Nobody saw, 'Samu."

Osamu's jaw tightened. "I know. I saw it."

Atsumu looked up sharply. "You did?"

"I saw enough to know it wasn't an accident." Osamu's hands curled into fists on his knees. "He said something to you too, didn't he? During warm-ups."

Atsumu nodded, lip trembling. "He knew about my surgery. About the scar. He said... he said I was messed up. That he was gonna find me after the match and show me what a real man—" His voice broke, and he pressed his palms to his eyes. "I couldn't stop it, 'Samu. I just froze. Like I was a kid again. Like I was back in middle school, hiding in the locker room because some asshole saw me changing and laughed at my chest."

Osamu's heart cracked. He remembered that day. He'd been the one to find Atsumu, hidden behind a row of lockers, shirt clutched to his chest, tears streaming down his face. He'd been the one to stand between Atsumu and that kid, to threaten him with a fist if he ever said anything like that again. And now, years later, here they were again.

Except this time, Atsumu wasn't hiding.

He was sitting in front of Osamu, tears falling freely, and he was talking. He was letting Osamu see the broken parts, the scared parts, the parts he spent so much energy covering up with bravado and trash talk.

"I should've stopped him," Atsumu said, voice thick with shame. "I should've shoved him off. Yelled at him. Called him out. But I just..." He wrapped his arms around himself, a protective gesture that made him look so small. "I just wanted it to stop. I wanted to disappear."

Osamu reached out and grabbed Atsumu's wrist, pulling his arms apart. Then he wrapped his own arms around his twin and pulled him close.

Atsumu stiffened for a second, surprised. They weren't a hugging family. They showed affection through insults and competitive banter, through late-night conversations about volleyball and shared meals of onigiri. But right now, words weren't enough.

"You don't have to disappear," Osamu said into Atsumu's hair. His voice was rough, thick with emotion he rarely let himself feel. "You don't have to be strong all the time. You don't have to handle everything on your own. That's what I'm here for, yeah? That's what twins are for."

Atsumu's hands came up, clutching at the back of Osamu's jersey. He buried his face in his brother's shoulder, and the sobs that had been quiet turned into full, heaving cries. He cried for the humiliation, for the fear, for years of hiding behind a mask of confidence because he was terrified that if anyone saw the real him, they'd find him lacking.

Osamu held him through it all.

They stayed like that for a long time, until Atsumu's sobs quieted into shaky breaths. Finally, he pulled back, wiping his nose on his sleeve.

"I'm sorry," he said. "I messed up the match. I let that asshole get in my head, and I—"

"Shut up," Osamu said, but there was no bite in it. "You didn't mess up anything. We're not done yet. We're down two sets, but we've come back from worse."

Atsumu stared at him. "You want me to go back out there?"

"I want you to do what you want to do." Osamu's gray eyes met his, steady and sure. "But if you ask me, I think you should go back out there and show that bastard what happens when he messes with a Miya."

A slow, shaky smile spread across Atsumu's face. "Yeah?"

"Yeah."

Atsumu took a deep breath, then another. He wiped his face one more time and stood up, squaring his shoulders. The confident setter was slowly returning, piece by piece, held together by his brother's unwavering presence.

"Okay," he said. "Let's go win this thing."

The second half of the match was a masterclass in vengeance.

Inarizaki came out like a different team. The first-year setter held his own for a few points, but when the score tied at 20-20, Coach Kurosu looked at Atsumu.

"You ready, Miya?"

Atsumu nodded. "I'm ready."

He stepped back onto the court, and the crowd erupted. Teammates slapped his back, shouted encouragement, and he felt their support like a wave carrying him forward. But the most important moment came when he passed Kuroda.

The other player's eyes widened. He opened his mouth, probably to say something, but before he could get a word out, Osamu was there, standing between them like a shield.

"Try it," Osamu said, barely a whisper. "I dare you."

Kuroda's mouth clicked shut.

The match reached its climax. Atsumu's hands were steady now, his sets perfect—sharp, precise, utterly untouchable. He fed Suna a quick that killed the rally. Launched a high ball to Osamu that the twin sent screaming past the block. Served an ace that kissed the baseline and left the rival team scrambling.

And every time he looked at Kuroda, he didn't flinch.

He was terrified. The fear was still there, curled up in his chest like a cold knot. But sitting beside it was something stronger—the memory of his brother's arms around him, the promise of protection, the knowledge that he wasn't alone.

The final point came on a block by Osamu, his hands meeting Kuroda's spike with such force that the other player stumbled backward and fell. The ball hit the floor. The whistle blew. Match over.

Inarizaki had won.

The team erupted into cheers. Atsumu was swept up in a pile of celebrating players, and for a moment, the joy was overwhelming. But when he finally extracted himself, he saw Osamu standing to the side, not celebrating, eyes fixed on Kuroda slowly getting to his feet.

"Don't," Atsumu said, grabbing his brother's arm. "It's over. Let it go."

Osamu looked at him, and for a moment the cold fury was still there. Then it softened, and he nodded.

"Fine. But we're telling the coaches."

And they did.

Later, in the aftermath, with the officials informed and a formal complaint filed, Atsumu sat on the bus with his brother beside him. The rest of the team was loud, celebrating their victory, but the twins sat in a bubble of quiet.

"Thanks," Atsumu said, his voice small. "For... everything."

Osamu shrugged. "Don't get used to it. I'm still gonna beat you at onigiri eating later."

Atsumu laughed, and it felt like light. "You wish, bean sprout."

They sat in comfortable silence as the bus rumbled through the evening streets. Atsumu's chest still ached with a dull, residual shame, but it was fainter now, less consuming. He knew the healing wouldn't happen overnight. He knew there would be bad days, days when the memory of Kuroda's hands on his skin would make him want to crawl out of his own body.

But he also knew he wouldn't face those days alone.

"Hey, 'Samu?"

"What?"

Atsumu leaned over and rested his head on his brother's shoulder. "I love you, you know that?"

Osamu went still for a moment. Then he sighed, but it was soft, almost fond.

"Yeah," he said. "I know."

He didn't say it back. He didn't need to. Atsumu could feel it in the way his brother's shoulder relaxed under his head, in the way Osamu's hand came up to rest on his knee, in the steady warmth of his presence.

The match was over. The victory was theirs. But more than the win, more than that championship banner they'd chase tomorrow, Atsumu had gained something that mattered far more.

He'd gained the courage to let his armor fall, and discovered that underneath, he was still whole.