Body & Soul

The first thing Atsumu Miya noticed when he woke up was that his chest hurt. Not the kind of hurt from getting spiked in the face during practice, or the usual ache after a hard workout. This was different. Heavy. Tender. Wrong.

He groaned and rolled onto his back, staring at the crack in his bedroom ceiling he’d memorized years ago. Summer sunlight sliced through the curtains, painting warm stripes across his comforter. No practice today. Just video games and doing absolutely nothing.

He sat up, stretched his arms over his head, and froze.

The stretch pulled against his chest in a way it never had before. He looked down. His t-shirt—the one he’d worn to bed a hundred times—looked different. The fabric sat tighter across his pectorals, pulled taut in a way that emphasized a new, unmistakable roundness.

His breath hitched. He scrambled off the bed, nearly tripping over a stray volleyball, and stumbled to the full-length mirror on his closet door.

He stared.

Where his chest had been flat, lean, defined by muscle just days ago, there were now two distinct, soft mounds. Not huge, but undeniably there, pushing out the fabric of his shirt like something that didn’t belong to him.

“No,” he whispered. “No, no, no.”

He lifted his shirt. Smooth, pale skin crested with new curves. They were sensitive—the skin almost prickling when his fingers brushed against it. This wasn’t weird swelling from a muscle injury. This was something else entirely.

His heart hammered. He pulled his shirt back down, but the shape was undeniable. He couldn’t go downstairs like this. His mom would notice. Osamu would definitely notice, and he’d never hear the end of it.

He ripped open his closet door, frantically searching for something loose. Something that hid the new topography of his body. A hoodie—too hot for summer. An old jersey—clung to his chest like a second skin. Desperation clawed at him.

Then he remembered.

Last month, his mom had come home with a bag of clothes from a neighbor whose daughter went off to college. She’d sorted through it, muttering about “growing so fast” and “hand-me-downs,” and tossed a few items into his room “just in case.” He’d ignored them.

He yanked open his bottom drawer. There, nestled between a pair of old gym shorts and a tangled mess of charging cables, was a flesh-colored bra. Simple. No lace or frills. Just soft cotton cups and thin straps.

Atsumu held it like it was a live grenade.

He had no idea how to put it on. Fumbled with the clasp, nearly snapped the strap in frustration, before he finally wrangled it around his torso. The cups settled against his new curves, lifting and supporting them in a way that was both foreign and—annoyingly—more comfortable than the heavy pull of gravity against tender skin.

He pulled on his tightest t-shirt, a black one with a band logo, and stared at his reflection. The bra flattened the worst of it, but his chest was still more prominent than it should be. He was a male twin. A setter. He didn’t do bras.

But it was the best he could do.

He took a deep breath, squared his shoulders, and walked downstairs.

The smell of miso soup and grilled fish floated from the kitchen. His mom was at the stove, back to him, humming. Osamu was already at the table, shoveling rice into his mouth with mechanical efficiency. He looked up as Atsumu entered, and his chopsticks stopped mid-air.

Atsumu’s heart stopped.

Osamu’s eyes traveled from Atsumu’s face, down to his chest, and back up again. A slow, wicked grin spread across his face.

“Mornin’, 'Tsumu,” he said, voice dripping with false sweetness. “Sleep well?”

“Shut up,” Atsumu snapped, sliding into his seat and reaching for the rice bowl.

“Nah, nah, I’m just wonderin’,” Osamu continued, gesturing with his chopsticks. “Did ya grow some boobies overnight, or are ya just happy to see me?”

Heat flooded Atsumu’s cheeks. He gripped his chopsticks so hard they threatened to snap. “I swear to god, Osamu—”

“Look at ’em,” Osamu said, leaning forward, grin widening. “They’re proper tiddies, aren’t they? Cheeky little things. Can I touch ’em?”

“OSAMU MIYA!”

Their mother’s voice cut through the kitchen like a knife. She spun around from the stove, ladle brandished like a weapon. Her eyes were fierce. “What did I tell you about teasing your brother?!”

“I’m just statin’ facts, Ma,” Osamu said, holding up his hands in mock surrender. “I’m an observer. I observe things.”

“Observe a swift kick to the shins,” Atsumu muttered.

“Boys!” Their mother slammed the ladle down on the counter. “Atsumu, honey, don’t mind him. It’s just a change. Your body’s goin’ through a lot.”

Atsumu stared at his rice. “I don’t want it,” he mumbled. “I don’t want any of this.”

His mother’s expression softened. She came over and placed a warm, calloused hand on his head. “I know, sweetie. But your body knows what it’s doin’. We’ll figure it out together, okay?”

He nodded, not trusting his voice. Osamu, for once, kept his mouth shut, but Atsumu could feel his twin’s gaze on him—not teasing anymore, but something quieter. Almost like concern.

---

Six months later, Atsumu learned that boobs were just the opening act.

He was sprawled on his bed, scrolling through his phone. A low, dull ache had settled in his lower back about an hour ago—he’d written it off as bad sleep posture. But then the ache twisted, deepened, turned into a cramp that made him curl into a fetal position.

And then he stood up.

The feeling was unmistakable. A sudden, wet warmth flooding his pajama pants. He looked down. A dark red stain spread across the gray fabric, blooming like some horrifying flower.

“No,” he breathed. “No, no, no, no, NO.”

The pain in his abdomen sharpened—a clawing sensation that stole his breath. He stumbled toward the door, vision swimming. He didn’t know what he was supposed to do. His mom had talked to him, briefly, awkwardly, about “the changes,” but he’d tuned most of it out. He was a boy. Boys didn’t get periods.

Except apparently, they did.

He yanked the door open and almost collided with his mother, who was carrying a laundry basket.

“Atsumu? What’s wrong? You look pale as a ghost—” Her eyes dropped to the stain on his pants, and her expression shifted from confusion to calm, practiced efficiency. “Ah. I see. Right on schedule.”

“I don— I don’t know what to do,” Atsumu stammered, his voice cracking. The pain was getting worse. Felt like someone was wringing his insides like a wet towel.

“Okay, okay, it’s okay,” his mother said, dropping the laundry basket and taking his arm. “First things first. Let’s get you cleaned up. Don’t panic. This is normal. This is normal, Atsumu.”

She guided him to the bathroom, handed him a fresh pair of underwear and a pad, and explained in a low, steady voice how to use it. Atsumu felt like he was moving through a dream. Shaking. Clammy hands. The pad felt like a diaper.

When he came out, his mother had set up a heating pad on the couch and was making him ginger tea. He curled into the cushions. The warmth of the heating pad did nothing to stop the brutal cramps.

His mom sat beside him, stroking his hair. “The first one’s always the hardest,” she said gently. “It’ll settle down. I promise.”

Atsumu didn’t respond. He was too busy trying not to cry. The tears came anyway—hot and silent, tracing down his temples and soaking into the couch cushion. He hated this. Hated his body. Hated feeling weak and small and wrong.

The front door opened. Osamu’s voice floated in. “I’m home. Ma, did you make onigiri? I’m starvin’—”

He stopped in the doorway. His eyes landed on Atsumu, curled up like a wounded animal, face blotchy and wet. Osamu’s backpack slid off his shoulder and hit the floor.

“What happened?” he asked, voice stripped of all its usual sarcasm.

Atsumu couldn’t answer. His mother leaned in and whispered something in Osamu’s ear. His twin’s face went through a rapid series of expressions: confusion, surprise, and then a flash of something soft that vanished as quickly as it appeared.

“Ah,” Osamu said. He walked over and stood in front of the couch, looking down at Atsumu. For a long moment, neither of them spoke. Then Osamu reached into his pocket and pulled out a wrapped chocolate bar.

“Here,” he said, dropping it onto Atsumu’s stomach. “I heard chocolate helps.”

Atsumu stared at the chocolate bar. His favorite—the fancy one with almonds and sea salt. Osamu never bought him treats.

He unwrapped it with shaking hands and took a bite. The sweetness melted against his tongue, and something in his chest loosened just a little.

“Thanks,” he mumbled.

Osamu shrugged. “Don’t get used to it.”

But the next day, there was another chocolate bar on his nightstand. And the day after that. And the day after that. For the entire week, Osamu brought him chocolate. Never said anything about it. Just left it like a secret delivery, and Atsumu never said anything back. He didn’t need to.

---

Present day. The Miya family living room.

“Give it back, you greasy-haired goblin!”

“It’s my turn, you whiny brat. I haven’t played in an hour!”

“That’s because you’re bad at the game, 'Samu!”

Atsumu and Osamu were locked in a brutal tug-of-war over the TV remote, faces inches apart, neither willing to give an inch. Suna Rintarou sat on the other couch, legs crossed, phone in hand, watching the chaos with the detached amusement of a zookeeper observing a pair of unruly monkeys.

“You’re both embarrassing,” Suna said, not looking up from his phone. “You’re nineteen. Act like it.”

“I’ll act like it when he learns to share!” Atsumu yanked the remote, and Osamu yanked back.

“You don’t get to talk about sharing when you hogged the controller for three straight rounds,” Osamu growled.

“Because I was winning!”

“You got lucky!”

“Lucky? I’ll show you lucky—”

Atsumu, in a fit of tactical genius (or desperation), launched himself onto Osamu’s lap. He landed with a thud, straddling his twin’s thighs, and used his weight to pin Osamu’s arm and snatch the remote.

“Ha!” Atsumu crowed, holding the remote aloft like a trophy. “Victory is mine!”

Osamu glared up at him. “Get off me, you absolute menace.”

“Make me.”

Suna finally looked up from his phone, a faint smirk on his lips. “This is the most interesting thing that’s happened all day.”

Atsumu shifted on Osamu’s lap, trying to get comfortable, and that’s when he felt it.

A warm, spreading wetness against his inner thigh.

His blood ran cold.

He looked down. Osamu’s light gray joggers were darkening over the thigh—a slow, spreading stain that was unmistakably red.

“No,” Atsumu whispered.

Osamu followed his gaze. The blood drained from his face. “Atsumu... what the hell?”

“I— I don’t—” Atsumu scrambled off him, stumbling backward and nearly tripping over the coffee table. His own pajama shorts were stained. A bad break. A really, really bad break. “I’m sorry, I’m sorry, I’m so sorry, 'Samu—”

“Hey, hey, calm down,” Osamu said, his voice strained but steadier than Atsumu’s. He stood up, looking at the mess on his pants. “It’s fine. It’s just blood. It’ll wash out.”

“It’s your pants! I bled all over your pants!”

“And I said it’s fine, didn’t I?”

Atsumu’s heart was racing. His hands were shaking. The cramps, which had been a dull background noise all morning, suddenly sharpened into a vicious, twisting knife in his gut. His vision started to blur around the edges.

“Tsumu?” Osamu’s face swam in front of him. “Hey, you look pale. Sit down.”

“I’m fine, I’m—” Atsumu blinked, and the world tilted. His knees buckled. The last thing he heard was Osamu shouting his name before everything went black.

He woke up on the cold floor, staring at the ceiling fan. Osamu was leaning over him, hand on Atsumu’s cheek, slapping it lightly.

“Hey. Hey. Wake up. Don’t do this to me.”

“I’m awake,” Atsumu croaked. His head was pounding. “What happened?”

“You fainted.”

“I did not.”

“You did.” Suna’s voice floated from somewhere above. “It was kinda dramatic. You folded like a lawn chair.”

Atsumu groaned and tried to sit up. The moment he lifted his head, the world tilted again, and he collapsed back down.

“Whoa, whoa, easy,” Osamu said, catching his head before it hit the floor. “Take it slow.”

“Osamu.” Atsumu’s voice was small. “I’m scared.”

Osamu’s throat tightened. “Don’t be. You’re fine. You’re gonna be fine.”

But Atsumu wasn’t fine. Over the next fifteen minutes, he fainted again. And again. And again. Each time, he’d open his eyes, try to stand, and the world would spin out from under him. His blood was soaking through the pad faster than it should. Faster than was safe.

“Ma!” Osamu shouted, his voice cracking with panic. “MA, GET IN HERE!”

Their mother came running. She took one look at the situation—at Atsumu’s pale, clammy face and the growing stain on his clothing—and her expression turned grim.

“We’re going to the hospital,” she said. “Now. Osamu, help me get him to the car.”

The ride was a blur of streetlights and hushed, worried voices. Atsumu drifted in and out, slumped against Osamu’s shoulder in the back seat. His brother’s arm was wrapped around him, holding him steady.

“You’re gonna be okay,” Osamu murmured into his hair. “You’re gonna be okay.”

At the hospital, the doctors moved quickly. They asked questions Atsumu was too dizzy to answer, so his mom spoke for him. Blood was drawn. An IV was hooked up. A doctor with kind eyes and a calm voice explained that his body was producing too much uterine lining, leading to hemorrhagic periods, and that medication could regulate his cycle and stop the heavy bleeding.

“Very common in these cases,” the doctor said, patting his hand. “We’ll get you fixed up in no time.”

Atsumu felt small. Small and broken and exposed. He’d been prodded and poked and asked questions he didn’t have answers to, all while his body betrayed him in the most humiliating way possible.

When the doctor left, Osamu slid into the chair beside his bed. He looked at Atsumu for a long moment, then said, “So. Ya got a prescription for your coochie. That’s pretty gangster.”

Atsumu stared at him. Then, despite everything, a laugh bubbled up from his chest. Weak, and it hurt, but it was real.

“You’re such an idiot,” Atsumu said.

“Yeah, but I’m your idiot.” Osamu reached out and ruffled his hair. “And we’re cut from the same cloth, remember? Same blood. Same stupid, complicated bodies. You’re not alone in this, 'Tsumu.”

Atsumu’s eyes stung. He blinked rapidly, refusing to cry. “That’s disgustingly sentimental, comin’ from you.”

“Shut up. I’m tryin’ to be nice.”

“Don’t. It’s weird.”

Osamu grinned. “Your face is weird.”

“That doesn’t even make sense.”

“Doesn’t have to.”

Later that night, after they’d been discharged, they sat in the living room together. Atsumu was wrapped in a blanket, heating pad on his stomach, new prescription pills on the coffee table. Osamu was beside him, remote in hand.

“So,” Osamu said, scrolling through options. “What d’ya wanna watch?”

“Anything. Just... not a rom-com.”

“Good. Those are garbage.”

“Hey.” Atsumu leaned his head against Osamu’s shoulder. “'Samu?”

“Yeah?”

“Thanks. For the chocolates. And for... you know. Not bein’ weird about it.”

Osamu was quiet for a moment. Then he said, “You’d do the same for me.”

“I would.”

“I know.”

They sat in comfortable silence, the TV playing some action movie neither of them was really watching. Suna, who had stayed despite the chaos, sat in the armchair, scrolling through his phone. He looked up, saw the twins pressed together, and rolled his eyes.

“You two are disgustin’,” he said.

“Jealous?” Atsumu shot back.

“Of that?” Suna gestured vaguely at them. “Hard pass.”

But he was smiling. Just a little.

And for the first time in a long time, Atsumu felt like maybe, just maybe, he was going to be okay.