Scents of Devotion
When Osamu presents as an alpha and Atsumu as a beta, it seems like the natural order—until Atsumu's suppressed omega designation threatens to unravel everything. A story of twin brothers navigating identity, prejudice, and the unbreakable bond that defies biology.
The Miya house smelled like grilled fish and birthday excitement. Sixteen—a big deal, even without the whole biological clock thing hanging over every kid's head. Mom went all out. Presents piled up on the table, but the real buzz was something else, crackling in the air like you could reach out and touch it.
Osamu felt it first. This warmth spread through his chest, slow and syrupy, all the way down to his fingers and toes. His skin prickled. And then there was this smell—rich, earthy, like cedar after a rainstorm. Mom's eyes went wide. She rushed over, cupping his face.
"Osamu," she whispered, her voice all choked up. "You're an alpha."
The word landed on him like a coat that didn't quite fit. He'd figured he'd be a beta, like most people. But the protective instinct that surged through him—fierce, undeniable—felt weirdly right. He looked at Atsumu, who was staring at him with an expression he couldn't read. His twin's scent was... nothing. Clean. Neutral. Beta.
"Tsumu?" Osamu's voice came out lower than usual.
Atsumu shrugged, all fake nonchalance. "Guess I'm the beta of the family. Someone's gotta keep you grounded, Alpha." He said it with a teasing lilt, but it didn't reach his eyes. Osamu noticed, but the warmth of his new designation was a nice fog, dulling everything else.
Next day at practice, the team celebrated. Slaps on the back. The usual "which twin is which" jokes turned into respectful nods toward the new alpha. Atsumu was still Atsumu—loud, cocky, brilliant on the court. But things felt different.
A week later, the fog lifted. And everything came crashing down.
Practice had ended, but a few of them were still running drills. Atsumu was working on a new set to Suna, focused sharp. Then, out of nowhere, his body just... gave out.
It started as a warmth, a heavy feeling in his limbs. He figured it was exhaustion. But then the heat grew, radiating from his core like a furnace. His shirt stuck to his skin. And this smell—sweet, cloying—started seeping out of him. Nothing like the clean, neutral scent he'd always had. This was heavy, like honeysuckle and something deeper, more primal.
The ball slipped from his fingers. He staggered, dizzy.
"Tsumu?" Osamu's voice cut through the haze.
Atsumu looked up, and the world tilted. His vision blurred. The scents of the gym—sweat, leather, floor cleaner—overwhelmed him. He tried to stand, but his knees buckled. Osamu was at his side in an instant, his alpha scent flaring with protective alarm.
"Get back," Osamu ordered, his voice a low growl that made everyone step back. "He's in heat."
The words cut through Atsumu's feverish mind like a blade. Heat? No. No way. He was a beta. He'd been tested. The doctor said—
"I'm not—" Atsumu tried, but it came out as a weak whimper. He was shaking. "I can't be... I'm not an omega."
Osamu ignored him, scooping him up with an ease that made Atsumu's stomach turn. His brother's scent enveloped him, warm and grounding, and despite everything, Atsumu's body responded, leaning into the comfort.
"I'm taking him home," Osamu announced. "Kita-san, we'll be back when he's... when he's better."
The walk home was a blur. Atsumu clung to his brother, face buried in Osamu's neck, breathing in the only anchor in the storm. He could hear Osamu's steady heartbeat, feel the rumble of his voice whispering reassurances he couldn't process.
Their house was quiet. Parents still at work. Osamu carried him to their shared room, laid him on the bed, and started opening windows.
"I'm not..." Atsumu started again, but a sob choked him. His eyes burned. He pressed his palms against them, trying to stop the tears.
"Tsumu." Osamu's voice was soft, the gentlest Atsumu had ever heard. He climbed onto the bed, pulling Atsumu into his arms. "Just breathe. I've got you."
Osamu let his cedar-and-rain scent wash over his twin. He didn't say much. Just held him, steady and warm, while the storm raged inside Atsumu's body. When the worst of the heat subsided, Atsumu lay limp, exhausted, hollow.
The next morning, the hollow feeling solidified into something cold and heavy. Atsumu stared at the ceiling, his mind cycling through the implications like a broken record.
Omegas didn't play professional volleyball. That was a fact etched into the sport's history. The few who tried got pushed aside. Their bodies deemed too unstable, too distracting. Their cycles unpredictable, their scents disruptive. No team wanted that liability.
And university? What university would accept an omega into their competitive sports program? No, the doors that had been wide open were slamming shut, one by one. The future he'd built in his mind—the MSBY Black Jackals, the Olympics, the name Miya Atsumu etched in volleyball history—crumbled to dust.
He turned his head to look at Osamu, sleeping soundly beside him. His brother, the alpha. The one who had a future. Atsumu would be nothing but a burden, a responsibility for Osamu to protect. He'd end up a housewife, dependent on someone else for the rest of his life.
The tears came again, silent and endless.
When Osamu woke, he didn't push. Just handed Atsumu a glass of water and sat beside him, waiting.
"I'm done," Atsumu whispered, his voice raw. "It's over, 'Samu. Volleyball. Everything."
"It's not over," Osamu said, firm.
"It is." Atsumu's voice cracked. "You know it is. Omegas don't play pro. They don't go to good schools. They get married off and pop out pups and that's it. That's all I get to be."
"Tsumu—"
"Don't." Atsumu's hands clenched in the sheets. "Don't tell me it's gonna be okay. It's not. You don't know what it's like. You got lucky. You got to be the alpha. I'm just... I'm just the broken one."
Osamu's jaw tightened, but he didn't argue. He reached out and put a hand on Atsumu's shoulder. "I'm not going anywhere. Whatever you need, I'm here."
Atsumu pulled away, rolling over to face the wall. "Just leave me alone."
The days that followed were a slow, agonizing unraveling.
Practice was a nightmare. Atsumu showed up because he had nothing else to do, but he was a ghost of his former self. His setting was sloppy. His focus shattered. He didn't celebrate his sets anymore. Didn't taunt the blockers or brag about his reflexes. Just moved through the motions, eyes perpetually red-rimmed.
The team noticed. How could they not? The loudest voice in the gym had gone silent.
Ginjima tried to lighten the mood, ribbing Atsumu about his form. Atsumu didn't even flinch. Suna studied him with narrowed eyes, his observations silent but piercing. The first-years stayed out of his way, sensing the storm brewing beneath the surface.
Kita was the first to approach him directly. He found Atsumu sitting alone in the locker room after practice, head in his hands.
"Atsumu," Kita said, calm and measured. "You want to talk?"
"No," Atsumu mumbled.
Kita sat down beside him, not too close, not too far. "I'm not going to pretend to know what you're going through. But I know that hiding from it won't help."
Atsumu looked up, eyes blazing with a desperate, angry fire. "What do you want me to do, Kita-san? Pretend I'm fine? Pretend that everything I've worked for isn't gone because my body decided to be defective?"
"You're not defective."
"Then what am I?" Atsumu's voice broke. "What am I supposed to be now?"
Kita was silent for a long moment. "You're still Atsumu. You're still the best setter I've ever seen. Those facts don't change just because you presented as an omega."
"Tell that to the pro scouts," Atsumu spat.
"Rules change," Kita said, quiet but firm. "They've changed before. They'll change again. And if they don't, you'll find another way."
"There is no other way," Atsumu whispered.
Kita didn't argue. He just put a hand on Atsumu's shoulder, a brief, grounding touch, and left him alone.
Aran tried next, a few days later. He cornered Atsumu on the rooftop, where he'd taken to eating lunch in solitude.
"You're skipping practice tomorrow," Aran said, not a question.
"What's the point?" Atsumu shrugged.
"Because you love volleyball," Aran said simply. "Because you're Miya Atsumu, and you don't give up on anything."
"Maybe I should start."
Aran sighed, running a hand through his hair. "Look, I don't know what it's like to be an omega. But I know what it's like to feel like your dreams are out of reach. And I know that giving up is the only way to guarantee they never come true."
Atsumu didn't answer. Just stared at the horizon, eyes hollow.
Aran knelt in front of him, meeting his gaze. "Your value isn't in your designation. It's in you. In your talent, your drive, your heart. Don't let anyone, especially yourself, tell you otherwise."
The words washed over Atsumu, but they didn't sink in. He was too deep in the pit of his own despair, too tangled in the fear that he had lost everything he was.
It was Osamu who found him three weeks later, crumpled on the bathroom floor, his second heat hitting him harder than the first.
The scent of honeysuckle and salt was overwhelming. Atsumu was sobbing—ugly, heaving sobs that tore through him like a physical pain. He had locked the door, tried to ride it out alone, but the loneliness was unbearable. He needed his brother. He hated that he needed his brother.
"Tsumu!" Osamu's voice was muffled by the door. "Open up!"
"Go away!" Atsumu screamed, but his voice was weak, broken.
The door splintered as Osamu's shoulder connected with it. He burst through, taking in the scene: his twin curled up on the cold tile, shaking, tears and sweat streaming down his face.
"Atsumu," Osamu breathed, dropping to his knees beside him.
"It's over, 'Samu," Atsumu sobbed, clutching at Osamu's shirt. "It's all over. I'm never gonna be anything. I'm never gonna play. I'm just... I'm just a waste. I'm a waste of space."
"No." Osamu's voice was fierce, his alpha instinct roaring. He pulled Atsumu into his arms, holding him tight. "You're not a waste. You're my brother. You're the best volleyball player I know. You're not done."
Atsumu sobbed against his chest, the words pouring out in a torrent of grief. "I wanted to be the best. I wanted to play with the Black Jackals. I wanted to go to the Olympics. And now I can't. I can't do any of it. I'm just an omega. That's all I'll ever be."
"You're more than that." Osamu's voice was raw, cracking. "You've always been more than that. And I don't care what the rules say. I don't care what anyone says. We'll find a way, Tsumu. I promise you, we'll find a way."
"What if there is no way?" Atsumu whispered.
"Then we make one."
The tears didn't stop, but the sobbing softened. Atsumu clung to his brother, letting Osamu's scent wash over him, letting himself be held.
They didn't know the team had gathered outside. They'd heard the commotion, followed the scent of distress. They stood in the hallway, listening to Atsumu's cries, feeling the weight of his pain.
Kita was the first to act. He stepped forward, knocked gently on the already-broken door, and spoke through the gap.
"Atsumu."
The twins both froze. Atsumu's head lifted, eyes red and swollen.
"Atsumu," Kita repeated, steady and unwavering. "We're here. All of us. And we're not going anywhere."
Ginjima's voice followed, rough but sincere. "You're our setter, Miya. You're the reason we can do what we do. That doesn't change."
Suna's voice was quiet, but it carried. "You're an asshole. But you're our asshole. And we're not going to let you give up."
Aran added, thick with emotion, "We'll figure it out. Together. One step at a time."
Atsumu stared at the door, his breath hitching. He looked at Osamu, who nodded, eyes bright with unshed tears.
"They mean it," Osamu whispered.
Atsumu buried his face in his brother's shoulder and let out a shaky breath. For the first time in weeks, the suffocating weight on his chest began to lift.
The turning point didn't come all at once. It came in small, quiet moments in the days that followed.
Atsumu started showing up to practice again—not as a shell, but as a flicker of his former self. His sets were still off, but he was trying. Osamu stuck by his side like glue, silent and steady. The team was careful, treading lightly, but their support was unshakeable.
Kita found Atsumu in the library one afternoon, hunched over a stack of books. "Research?" he asked, sitting down across from him.
Atsumu looked up, eyes guarded but less hollow. "There have been... some omegas. In sports. Not volleyball, but other sports. There's this one athlete in the US, a track star. She's an omega. She made it work with her team."
Kita nodded, a small smile touching his lips. "See? Rules can change."
"They're not the same rules," Atsumu said, but there was a thread of hope in his voice.
"Close enough."
Atsumu looked down at the book in his hands. "I'm not giving up," he said, quiet but firm. "I can't. Volleyball is... it's part of me. I don't know who I am without it."
"Then don't find out," Kita said simply.
Atsumu's second heat ended, and he emerged from his room with a new resolve. It was fragile, still cracking at the edges, but it was there. He started studying again, catching up on the work he had neglected. He started practicing harder, refusing to let his skills atrophy. He started researching, looking for loopholes, for any path that might lead him back to his dream.
Osamu watched him, a quiet pride swelling in his chest. The bond between them had shifted, deepened. It wasn't just brotherhood anymore. It was something more profound—a mutual understanding born of shared vulnerability.
One night, after a long practice, they sat on their bedroom floor, eating instant yakisoba out of cheap plastic containers.
"Thanks," Atsumu said, the word small but heavy.
"For what?" Osamu asked, not looking up from his noodles.
"For not giving up on me. For being there. For... everything."
Osamu set down his container and met his brother's eyes. "You don't have to thank me, Tsumu. You're my twin. My other half. I'd do anything for you."
Atsumu's eyes welled up, but he blinked the tears away. "I'm still gonna fight," he said, his voice gaining strength. "For volleyball. For my dreams. I'm not gonna let being an omega stop me."
"Good," Osamu said, a small smile tugging at his lips. "Because if you gave up, I'd have to kick your ass."
Atsumu laughed, the sound rusty but genuine. "You can try, Beta-turned-Alpha."
"Watch it, Omega," Osamu shot back, but there was no bite in his words.
They sat in comfortable silence, the weight of the past month slowly, finally, lifting. The road ahead was uncertain, full of obstacles and closed doors. But for the first time, Atsumu didn't feel alone. He had his brother. He had his team. And he had a fire in his chest that refused to die.
He would fight. He would find a way. Because Miya Atsumu didn't give up. Not on volleyball. Not on himself. And not on the dreams that defined him.