The Rift Between Us

After a mysterious jump to a future where their dreams have torn them apart, twin brothers Atsumu and Osamu return to their seventeen-year-old selves, carrying the weight of a broken bond they refuse to let become reality.

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The world just… lurched.

One second they were seventeen, standing in the hallway of their shared apartment in Hyōgo, arguing over who drank the last of the milk. Next second, the floor dropped out from under them. Reality twisted—colors and sounds spiraling into something sick. Atsumu’s stomach fell. He reached out, blind panic, and found Osamu’s hand. Fingers locked tight. Then everything snapped back.

They hit concrete hard.

Cold air slapped Atsumu’s face. Rice and soy sauce hung in the air. He blinked, sprawled on a narrow balcony overlooking a city street. Neon signs flickered in the dusk. The sky was bruised purple-gray. Not their apartment. Not their city.

“What the hell…” Atsumu scrambled up, still gripping Osamu’s hand. He let go when his twin got to his feet. They locked eyes—silent alarm. “Where are we?”

Osamu didn’t answer. He was already scanning: rusted railing, unfamiliar skyline, a weathered sign below them reading Onigiri Miya in faded kanji.

Atsumu sucked in a breath.

“That’s… that’s the name of your shop,” he whispered. The one Osamu always talked about opening. The one Atsumu teased him for—called it a dream for lazy people who didn’t make it as pros. “But it looks old. Worn.”

Osamu’s jaw tightened. He stepped toward the sliding glass door, reached for the handle—his hand went right through, like smoke. He tried again. Nothing. Palm against the glass, straight through.

“We can’t touch anything,” he said, voice low. “We’re not… here.”

Atsumu tried the door too. Fingers through metal. A cold knot twisted in his stomach. He looked down at himself—solid, real, but transparent. “Are we dead?”

“We’re not dead,” Osamu snapped, though his voice wavered. “We’re just… watching.”

They didn’t have time to process. Inside, a light flickered on. Through the glass, a figure moved—broad-shouldered man, silver-gray hair, tired eyes. Grey hoodie. Hands trembling as he dropped keys on a cluttered counter.

Osamu’s breath hitched.

It was him. Older. Weathered. Clothes hanging loose on a frame that had lost weight. Lines around his mouth, shadows under his eyes. Unmistakably Osamu—future Osamu.

“Look,” present-day Osamu said, pointing.

Another figure stumbled out from the dark hallway behind the kitchen. Atsumu’s heart stopped.

It was him. Older. Longer hair, unkempt, falling into hollow cheeks. Baggy sweater that did nothing to hide hunched shoulders. Face pale, slick with sweat. A fresh bruise on his jaw, split lip barely scabbed. Eyes empty.

Future Atsumu moved like a ghost. He crossed the living room without looking at anything, collapsed onto the couch with a noise that was half sob, half whimper. Didn’t speak. Just curled into himself, arms around his knees, shaking.

Present-day Atsumu opened his mouth to scream—nothing came out. He tried to lunge forward, grab his older self, shake him awake—but his hands went through the back of the couch. He stumbled, fell, scrambled up again. “Osamu, do something, why aren’t you doing something?!”

“I can’t.” Osamu’s voice was barely a whisper. “We can’t. We’re not here.”

Future Osamu moved with practiced calm. He knelt in front of the couch, slow, careful not to startle the trembling figure. Reached out a hand, paused, then gently placed it on future Atsumu’s shoulder. Featherlight touch—made him flinch, then lean into it like a plant turning toward weak sunlight.

“Let’s get you cleaned up,” future Osamu said. Low, rough, but infinitely gentle.

Future Atsumu didn’t answer. Let himself be led like a child—unsteady steps, white-knuckled grip on Osamu’s arm. They disappeared into the bathroom. The door clicked shut.

Present-day twins stood frozen in the middle of the apartment. Silence suffocating.

“We have to help him,” Atsumu said, voice cracking. “Osamu, we have to—”

“We can’t.” Osamu’s voice was flat, but his hands shook. “We’re just watching. That’s all we are. Ghosts.”

Atsumu punched the wall. His fist sailed through the plaster. He let out a choked sound, pressed his forehead against the solid surface—felt nothing but cold unreality.

Time passed strange. They couldn’t tell if minutes or hours. Watched the bathroom light turn off, heard soft murmur of voices—one steady, one barely audible. When the door opened again, future Atsumu was wrapped in a clean t-shirt and sweatpants, hair damp. He looked smaller, fragile. Sat on the edge of the bed while future Osamu brought him water, miso soup.

He didn’t move to take them.

“You need to eat,” future Osamu said, sitting beside him.

Future Atsumu stared at the floor. His voice, when it came, was a rasp. “I don’t… I can’t…”

“Just a sip.”

Slowly—turtle-slow—future Atsumu reached for the glass. Hand shook so badly water sloshed over the rim. Future Osamu steadied it with his own, guided it to his lips. He drank. Then put the glass down and went back to staring at nothing.

The days blurred.

The present-day twins stayed, trapped, invisible, unable to leave. They watched future Osamu cook meals that went cold, change sheets stained with sweat, sit awake at night watching his brother’s fitful sleep. Watched future Atsumu speak less and less, until he didn’t speak at all. Didn’t cry. Just existed, curled up in a nest of blankets on the couch, eyes following light on the ceiling.

Sometimes future Osamu would talk to him. Quiet things. Memories of high school volleyball. That one time Atsumu overslept and missed practice. A fight they’d had over the last piece of Kobe beef. He talked like he was trying to remind him of a world beyond this room.

“You used to be so loud,” future Osamu said one morning, sitting on the floor with his back against the couch. “Couldn’t stand it. But I miss it now.”

Future Atsumu didn’t respond. But his hand crept out from under the blanket, fingers brushing against Osamu’s hair. First voluntary movement in three days.

Present-day Atsumu watched from the corner, throat tight. He hated this. Hated seeing himself so broken, hated the way Osamu’s shoulders had curled inward under a weight he couldn’t see. Wanted to scream, grab his future twin, shake him, ask who did this to you, tell me their names, I’ll kill them.

But he was mute. Helpless.

Younger Osamu said nothing. Just watched. Face unreadable, but Atsumu knew him well enough to see the cracks. The way his fists clenched at his sides. The way his jaw worked, grinding his teeth. The way his eyes, usually so deadpan, held a fire that threatened to consume.

“It’s getting worse,” present-day Atsumu said, on the fourth day.

Future Atsumu had started speaking again. Fragments. Single words. “Cold.” “No.” “Don’t.” Sometimes he’d jerk awake with a gasp, flailing, and future Osamu would hold him down, murmur reassurances until he stilled. A fragile recovery—a glass bridge over a chasm.

“He’s getting better,” present-day Osamu said.

“Is he? Or is he just pretending so you don’t worry?”

Osamu didn’t answer. He knew Atsumu was right.

On the afternoon of the fifth day, the doorbell rang.

Future Atsumu was on the couch, half-asleep. Future Osamu in the kitchen chopping vegetables. At the sound, he wiped his hands on a towel and went to answer.

The present-day twins followed, ghostly curiosity pulling them forward.

Future Osamu opened the door to a man in his mid-twenties—sandy hair, easy smile. Jogging suit, bag of convenience store snacks. He greeted future Osamu with a casual wave, stepping inside without waiting.

“Yo, Osamu. Sorry I’m late. Traffic was a nightmare.”

Future Osamu’s body language changed. Subtle—stiffening of his shoulders, a tightening of his grip on the door handle—but present-day Osamu caught it. He knew that look. It was the same look his older self wore when a customer complained about the rice.

“You shouldn’t have come,” future Osamu said, voice flat.

“What? I brought snacks. Thought we could catch a game or something.” The man walked into the living room, his gaze landing on the bundle of blankets on the couch. “Oh, hey. You’ve got company?”

Future Atsumu stirred. His head lifted slowly, hair falling away from his face, eyes focusing on the visitor. No recognition at first. Just a long, blank stare.

Then something flickered.

Present-day Atsumu saw it: a shudder running through his older self’s entire body. Pupils dilating. Tremor in his lip. Breaths quickening—shallow, frantic.

“Atsumu?” future Osamu called, voice sharp with alarm. He moved to intercept, but the visitor was already closer.

The man smiled, friendly, oblivious. “Hey, haven’t seen you in a while, Miya-san. You look—”

It was the voice. That casual, friendly tone. The present-day twins had never heard it before, but future Atsumu had. And it broke him.

He screamed. Not a cry of fear—an animal sound, raw and primal, torn from somewhere deep. He scrambled backward on the couch, knocking over a lamp, tangling himself in blankets. Eyes wild, unfocused, fixed on the visitor like cornered prey.

“Get away,” he gasped. “Get away, get away, get away—”

“Atsumu, it’s okay, it’s just—” the man started, reaching out.

Future Osamu was there in an instant. He grabbed the man’s arm, yanked him back with force that made him stumble. “Out.”

“What the hell, Osamu? I just—”

Out.

The command was steel. The visitor’s smile faltered, confusion bleeding into annoyance. He looked at the hysterical figure on the couch, then back at future Osamu—and for a split second, something dark flickered in his eyes. There and gone, but present-day Atsumu caught it. A flash of recognition. Of satisfaction.

And he knew.

This was him. One of them.

“Get the fuck out,” future Osamu snarled, shoving him toward the door. “Don’t come back. Don’t call. Forget you ever knew where I live.”

“Fine, whatever,” the man muttered, grabbing his bag. “Your brother’s always been a freak anyway.”

The door slammed. The lock clicked.

Future Atsumu was still screaming—or maybe he’d stopped and the sound was just echoing in the present-day twins’ heads. He had curled into a ball on the floor, hands over his ears, rocking. Future Osamu dropped to his knees beside him, reached out—but future Atsumu flinched away violently, a sob tearing out of him.

“Don’t touch me, don’t touch me, don’t touch me—”

“Okay, okay, I won’t.” Future Osamu pulled back, hands up. “I won’t touch you. I’m just here. I’m not going anywhere.”

The rocking continued. Minutes passed. The screams faded to whimpers, then to silence. Future Atsumu’s eyes were glassy, fixed on something no one else could see. His lips moved, forming words that didn’t make sound.

Present-day Atsumu was on his knees too, fists pressed against his chest, breath ragged gasps. He couldn’t feel the floor. Couldn’t feel anything but the crushing weight of impotence.

“We have to do something,” he choked out.

“We can’t,” present-day Osamu said again. Voice hollow.

“Stop saying that!”

“It’s true.” Osamu’s eyes were fixed on his older self, who was now lifting his brother’s limp body—he’d fainted—and carrying him to the bed. The scene was tender, devastating, domestic. “We can’t change this. It already happened.”

“But we saw it,” Atsumu hissed. “We know who. We know his face. When we go back, we can—we can stop it from happening.”

Osamu turned to look at him. Eyes red-rimmed, but voice steady. “Do you even know where this is? When this is? We don’t even know how we got here or how to leave. We’re just… ghosts.”

The word hung in the air like ash.

On the bed, future Atsumu stirred. Future Osamu sat beside him, one hand resting on his shoulder—not gripping, just there. Presence. Anchor.

“You’re safe,” future Osamu said, barely a whisper. “You’re with me. I’ve got you.”

Future Atsumu’s eyes fluttered open. Empty at first, then slowly focused on his brother’s face. He blinked once. Twice. Then reached out and grabbed Osamu’s hand, holding it against his chest.

He didn’t say anything. Didn’t have to.

The present-day twins watched in silence as the minutes stretched into hours. Light outside faded, room grew dim, and still they stood there, unable to turn away.

Then, without warning, the world lurched again.

Atsumu felt Osamu’s hand grab his—same reflexive grip as before, instinct born of nineteen years of being inseparable. Colors swirled, sounds distorted, and then they were falling, falling, falling.

They hit the floor of their own apartment.

The hallway was the same. The carton of milk still on the counter where they’d left it, television murmuring some late-night drama. Same day, same hour. They were seventeen again.

Atsumu gasped, doubled over, hands on his knees. Heart pounding so hard he thought it might crack a rib. Beside him, Osamu breathing just as ragged, face pale.

For a long moment, neither spoke.

Then Atsumu straightened. His eyes met Osamu’s in the dim light of the living room. No need for words. They’d seen it. They’d lived it. And they would never, ever let that future come to pass.

“Osamu,” Atsumu said, voice raw.

“Yeah.”

“I’m gonna be a pro. A great one. The best setter in the world.”

Osamu stared at him. Then, slowly, nodded. “And I’m gonna open the best onigiri shop in Japan.”

“And we’re gonna protect each other.”

“Always.”

They didn’t hug. Weren’t that kind of twins. But Atsumu reached out, and Osamu grabbed his wrist, and they held each other’s gaze for a long, silent second.

A promise sealed in blood and time and the ghost of a future they’d never let become real.

Outside, the city hummed on, unaware. But inside that small apartment, two seventeen-year-old boys had aged a lifetime in a single night. And they carried the weight of it forward—into every serve, every rice ball, every moment they had left.

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作品: Haikyuu!!
キャラクター: Miya Atsumu, Miya Osamu
ジャンル: Hurt/Comfort
トーン: Dark & Moody
長さ: ロング
生成元: Assia EL BITAR

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