The Prank That Backfired Softly

The afternoon sun slipped through the sheer curtains of the Miya twins’ living room, throwing gold rectangles across the worn tatami. A ceiling fan spun slow overhead, its whir the only thing breaking the quiet except for the occasional rustle of a magazine Osamu was pretending to read. Across from him, Atsumu had his phone propped against a throw pillow, watching some cooking video with the volume barely up. His head kept lolling, eyelids heavy with that specific kind of boredom you only get on a free day.

Osamu watched from behind the magazine, a half-smirk tugging at his lips. Boredom and a mischievous streak? Dangerous combo. Atsumu was too easy a target—too reactive, too earnest about things that actually mattered. And that earnestness? Exactly what Osamu wanted to poke at.

He set the magazine down with a long, theatrical sigh. The kind designed to snag attention. It worked. Atsumu glanced up, blinking.

“What?” Drowsy voice.

Osamu didn’t answer right away. He let his shoulders slump, dropped his gaze to his lap, let his jaw go slack like exhaustion had hit him. Earlier, he’d snuck into the bathroom while Atsumu was distracted, dabbed a bit of red cream blush around his lower lash line, blended it careful so it looked like leftover tears. Not too much—just enough to make his eyes look puffy and irritated. He’d rubbed them a little too, for that genuine red tint.

Now he raised his head slow, met Atsumu’s eyes with what he hoped looked hollow.

“Nothin’,” he mumbled, then looked away quick, pressing his palm against his eye like he was wiping a tear.

Atsumu sat up instantly. The phone clattered onto the cushion. “Oi, Samu. You okay?”

“M’fine.” Flat voice. He stood, not meeting his brother’s gaze, shuffled toward the hallway. “Just tired. Gonna lie down.”

He heard the sofa creak as Atsumu scrambled up. “Samu. Samu. Wait.”

But Osamu kept walking—slow, heavy steps, shoulders hunched. Didn’t look back, but he could feel Atsumu’s eyes on his back. Perfect. Hook, line, sinker.

He closed his bedroom door, leaned against it for a second, let himself grin tiny. Then flopped onto his bed, pulled out his phone, started scrolling through a game. Left the door just a crack—enough to hear Atsumu moving around.

Pause. Refrigerator opening. Cabinet doors. Clatter of a pot on the stove.

Osamu’s grin widened. He’s cookin’. Atsumu only cooked when he was trying to cheer someone up. And he wasn’t exactly a master chef, but he knew one thing: onigiri. Their grandmother’s recipe. Atsumu had learned it before Osamu even bothered, and he took a quiet, weird pride in it. Only made it for special occasions—or, apparently, for a twin he thought was crying.

Osamu swiped through a level in his puzzle game, one ear trained on the kitchen sounds. Rice cooker sizzling. Knife tapping against the cutting board. A few muttered curses under Atsumu’s breath. Osamu snickered silently.

Too easy.

About twenty minutes later, footsteps to the door. A soft knock.

“Samu? Can I come in?”

Osamu locked his phone fast, shoved it under his pillow, rearranged his face into melancholic. Curled onto his side, facing the wall, pulled the blanket to his chin.

“Yeah,” he said, voice small.

The door creaked open. Light footsteps crossed the room. The mattress dipped as Atsumu sat on the edge, right near his hip. A warm, familiar scent drifted over—slightly sweet, like honeyed tea, with something soft and grounding underneath. An omega’s calming pheromones. Atsumu wasn’t even doing it on purpose; it was just instinct, bleeding out because he thought his twin was upset.

Osamu kept his breathing even, his face hidden.

A clink of porcelain. A plate on the nightstand. Smell of freshly cooked rice and seasoned filling hit his nose. Salmon. His favorite.

“I made onigiri,” Atsumu said quiet. “Don’t know why. Just felt like it. You always liked ‘em, so… thought you might want some.”

Osamu felt a small pang of guilt. Pushed it down.

“Thanks,” he mumbled into his pillow.

Atsumu didn’t move. Sat there, perfectly still, his presence warm and solid. The calming scent intensified, wrapping around Osamu like a blanket. Meant to soothe, but it just made his heart beat faster. Atsumu was trying. Trying so hard.

“Samu.” Atsumu’s voice softer now, almost a whisper. “I know somethin’s wrong. You don’t gotta talk about it if you don’t want to. But I’m here.”

Osamu stayed silent.

Atsumu shifted. Then a hand touched his—gentle fingers curling around his own, which were tucked near his chest. Atsumu’s thumb started tracing small circles over his knuckles, slow, rhythmic, almost hypnotic. Osamu had never realized how warm Atsumu’s hands were. Calloused from years of volleyball, but tender now. Careful.

“My dear Osamu,” Atsumu murmured, barely audible, “I love you so much.”

The words hit Osamu like a punch to the chest. They weren’t supposed to. This was a prank. He was supposed to be detached, amused, above it all. But the sincerity in Atsumu’s voice—the way he said my dear Osamu, like something out of an old movie—made his throat tighten.

He didn’t respond. Couldn’t. Still committed to the act.

Atsumu sighed. His thumb kept moving. “I know you don’t like showin’ stuff. But you can talk to me. About anythin’. We’re twins. We’re supposed to share everythin’, right?”

Osamu squeezed his eyes shut. He needed to take this further. Give Atsumu a reason for the tears, something tangible. He’d thought about it earlier, but now, with Atsumu’s scent in his lungs and his brother’s hand on his, the lie tasted bitter.

Too late to back out now.

Slowly, painfully slow, Osamu turned onto his back. Kept his eyes downcast, his lashes wet with a few forced blinks that made the red makeup more noticeable. Sniffled.

“I just…” Paused. “I feel super fat, Tsumu.”

The hand stopped moving. The scent in the room flickered—surprise, confusion, then a spike of distress that made Osamu’s own instincts twitch.

“What?” Atsumu’s voice cracked. “Samu, what are you on about?”

Osamu pressed his lips together. Dared a glance upward. Atsumu’s face had gone pale. Eyes wide, brows drawn in disbelief and hurt. His lower lip trembled.

“I dunno,” Osamu said, dropping his gaze again. “Just been feelin’… big. Uncomfortable. Like I’m takin’ up too much space.”

Stupid lie. Osamu had never once worried about his appearance. Lean, muscular from years of volleyball and kitchen work. But the words came out anyway, hollow and cruel.

Atsumu’s breathing hitched. Then, before Osamu could react, Atsumu lunged forward and wrapped his arms around him, crushing him in a hug so tight it squeezed the air out. Atsumu’s face pressed into his shoulder. Body shaking.

“No,” Atsumu whispered, voice cracking. “No, no, no. Samu, you’re not fat. You’re perfect. You’re so handsome—everyone says so. You’re the best-lookin’ guy I know, and I’m not just sayin’ that ‘cause we’re twins. You’ve got muscles. Real ones. That’s not fat, that’s muscle. You work so hard at the restaurant, you lift all those bags of rice, you’re strong, you’re—you’re beautiful, you idiot!”

Tears streaming down Atsumu’s cheeks now. Osamu could feel them, hot and wet, soaking into his shirt. Atsumu’s fingers dug into his back. His omega scent had gone sour with anguish, thick and overwhelming.

“I can’t—I can’t stand it when you hate yourself,” Atsumu sobbed. “You’re the best part of me, Samu. You’ve always been the smart one, the calm one, the one who—who makes me feel safe. If you think you’re not good enough, then what does that make me? You can’t—you can’t say that, okay? Please. Please don’t ever say that again.”

Osamu’s heart hammered. He stared at the ceiling, arms still at his sides, paralyzed. This wasn’t supposed to happen. Atsumu wasn’t supposed to cry. He was loud, dramatic, emotional—but he didn’t break. Not like this. Not over a stupid lie.

But Atsumu was breaking. Shoulders heaving. Breath coming in ragged gasps. He held Osamu like he was afraid he’d disappear, like the words had cut something deep inside him.

And Osamu had done that. For a laugh. For a prank.

The guilt crashed over him like a wave—cliché but that’s what it felt like.

“Tsumu,” he said, voice rough.

Atsumu didn’t stop. Just clung tighter, burying his face deeper, whole body trembling.

Osamu slowly raised his arms and wrapped them around his brother. Held him back, feeling the sharp edges of Atsumu’s shoulder blades, the damp heat of tears against his collarbone. Rest his chin on Atsumu’s head.

“Tsumu. Look at me.”

Atsumu shook his head, still crying.

“Hey.” Osamu cupped the back of Atsumu’s neck, gentle. “Look at me, I said.”

Atsumu lifted his head. Eyes red, puffy, full of something raw and terrified. A single tear clung to his jaw, shimmering in the afternoon light.

Osamu reached up and wiped it away with his thumb. Soft. Almost reverent.

“It was a prank,” Osamu said quietly.

Atsumu blinked. “What?”

“A prank.” Osamu’s voice cracked, and he cleared his throat. “The makeup. The sad act. All of it. I was bored, and I wanted to mess with you. I didn’t think you’d—I didn’t think you’d take it this hard. I’m sorry.”

Atsumu stared at him. Mouth fell open. For a long, agonizing moment, he just gaped, processing. Osamu braced for anger, a punch, a loud explosive tantrum.

Instead, Atsumu’s face crumpled, and he let out a laugh—wet, relieved, broken.

“Oh, thank god,” he gasped, burying his face in Osamu’s shoulder again. “Oh, thank god. I couldn’t—I couldn’t bear it if you doubted yourself, Samu. I really couldn’t.”

Osamu’s chest ached. He tightened his arms around his twin, pressing his cheek to Atsumu’s hair. The guilt still there, sharp and gnawing, but slowly overtaken by something else—something warm and overwhelming, a tide of affection that made his eyes sting.

“Oh my god, Atsu,” he said, voice thick. “I love you so fuckin’ much.”

Atsumu pulled back, cheeks still wet, but a smile spreading—wobbly and genuine. “You’re a jerk.”

“I know.”

“A complete and utter jerk.”

“I know.”

Atsumu sniffled, rubbed his nose with the back of his hand. “You had me so scared. I was gonna call Ma.”

“You did not.”

“I was thinkin’ about it!”

Osamu laughed—a real laugh, surprised out of him. He reached out and ruffled Atsumu’s hair, messing up the already disheveled strands. “You started cryin’ for me. You’re awesome, you know that?”

Atsumu’s smile widened. He looked exhausted, wrung out, but happy. Leaned forward and bumped his forehead against Osamu’s. “Don’t ever do that again.”

“No promises.”

“Samu.”

“Okay, okay. No more pranks about feelin’ bad about myself. I promise.”

Atsumu nodded, satisfied. Pulled back, sniffled again, then glanced at the plate of onigiri on the nightstand. “You still gonna eat those?”

Osamu followed his gaze. Perfect triangles, neatly wrapped in nori, rice still slightly warm. Atsumu had shaped them with care, pressed them firmly so they wouldn’t fall apart. A labor of love, made by hands that trembled with worry.

“Yeah,” Osamu said softly. “I’m gonna eat every single one.”

Atsumu beamed.

They sat together on the bed, shoulder to shoulder, sharing the plate. Atsumu’s scent had settled back into its usual calm sweetness. Osamu ate slowly, savoring the familiar taste of salmon and sesame. The afternoon light had shifted, casting longer shadows across the floor. The ceiling fan still whirred. Somewhere outside, a dog barked.

Osamu finished his third oniguri and set the plate aside. Looked at his brother—still sniffling occasionally, but relaxed now, head tilted back against the headboard. A genuine smile lingered on his lips.

“Hey, Tsumu.”

“Mm?”

“Thanks.”

Atsumu cracked one eye open. “For what?”

Osamu shrugged. “For bein’ you. For… carin’ that much. For cryin’ over me like I was the most important thing in the world.”

Atsumu rolled his eyes, but his cheeks flushed. “You are, dummy. You’re my twin. You’re literally half of me.”

“Yeah.” Osamu smiled, small and genuine. “Half of you. Guess that makes you half of me, too.”

Atsumu laughed, soft and warm. He reached over and squeezed Osamu’s hand—once, quick, like a secret. Then stood up, stretched, yawned.

“I’m gonna go wash my face. I look like a raccoon.”

“You always look like a raccoon.”

“Shut up, Samu.”

Atsumu shuffled out of the room, still sniffling, but with a lightness in his step that hadn’t been there an hour ago. Osamu watched him go, the door swinging shut behind him.

He lay back on the bed, stared at the ceiling. The red makeup around his eyes had dried and cracked, making his skin feel tight. He didn’t care. Reached for his phone, but didn’t unlock it. Just held it, thinking about the feel of Atsumu’s tears on his shoulder, the desperate grip of his arms, the way he’d said my dear Osamu like it was the most natural thing in the world.

Osamu smiled to himself.

He’d planned a prank, and gotten something better. Proof—not that he’d needed it—that his obnoxious, loud, dramatic twin brother loved him more than anything. And that love, fierce and overwhelming and utterly sincere, was worth more than any joke.

He closed his eyes and let the afternoon settle around him like a blanket.

A few minutes later, the door creaked open again. Atsumu poked his head in, face clean, eyes still a little pink.

“Samu?”

“Yeah?”

“You want me to make more onigiri for dinner?”

Osamu opened his eyes and looked at his brother. Atsumu’s expression soft, open, still carrying traces of earlier worry but warming into something gentle.

“Yeah,” Osamu said. “I’d like that.”

Atsumu’s face lit up. He ducked out, calling over his shoulder, “Then get your lazy ass up and help me with the rice. I’m not doin’ all the work.”

Osamu laughed, low and fond. Pushed himself off the bed and padded into the kitchen, where Atsumu was already pulling out the rice cooker. Afternoon light streamed through the window, catching dust motes in the air. The scent of leftover salmon and fresh nori lingered.

They worked side by side, bumping shoulders, exchanging quiet jokes. Every now and then, Atsumu would glance at Osamu, checking, making sure. And every time, Osamu would meet his eyes and nod, a silent reassurance.

I’m fine. You’re fine. We’re fine.

And they were.

When the new batch of onigiri was ready, they sat at the low table in the living room, across from each other, the plate between them. The television was on, some variety show playing in the background. Atsumu laughed at a joke, loud and genuine, head thrown back.

Osamu watched him, and felt something settle in his chest—a quiet, steady warmth. He picked up an onigiri, took a bite, and smiled.

It was a good prank. But this—this was better.