Chapter 1 : The Stranger's Ceiling
Tokyo — Early April, Morning
The hands were wrong.
Arisu Misaki — except that wasn't his name, not the real one, not the one that belonged to the twenty-three years of memories jammed behind his eyes like a corrupted hard drive — stared at the fingers splayed across an unfamiliar bedsheet and tried to make them move. They moved. Ten of them. Pale, uncalloused, thinner than the ones he'd died with.
The phone on the nightstand screamed a tinny J-pop alarm. April 7th. The kanji blurred, then sharpened, then made sense in a way that his old brain shouldn't have been able to parse.
He sat up. The room tilted.
Okay. Okay okay okay.
Small bedroom. Desk with textbooks stacked neatly. A poster of some band he didn't recognize pinned above a cork board. Closet door half open, and hanging inside—
A school uniform. Red trim on the jacket collar. Black slacks.
And stitched into the breast pocket tag: Nekoma High School.
The room tilted again, but this time it wasn't vertigo. It was something cracking open inside his chest, something hot and wrong and electric, because he knew that name. Not the way you know your own school's name. The way you know something you watched on a screen for three hundred episodes and two movies and then argued about on Reddit at two in the morning.
He swung his legs off the bed. Bare feet hit cold floor. The body was light — too light, no muscle density, the kind of frame that came from a sedentary teenager who'd never been pushed past a school fitness test.
Fragments of the original occupant's memories surfaced in jagged pieces. First-year. Transferred from Sendai last month after his father's company relocated. No club activities. No friends yet. Mother downstairs making breakfast. Father already at work. One younger sister, eight years old, who drew cats on everything.
And the last thing from before — from his life, the real one, the one that ended on a rain-slick crosswalk in Osaka with headlights filling his peripheral vision and a sound like the world crunching shut—
He pressed his palms against his eyes.
Don't. Not yet. File that.
The headlights faded. The rain smell dissolved. He was here. Wherever here was. And he needed to move.
Misaki Residence — Kitchen
Breakfast was miso soup, grilled salmon, rice, and pickled vegetables. The woman at the stove had a round, kind face and the same thin wrists as the body he was wearing. She smiled when he came downstairs.
"Good morning, Misaki-kun. You're up early."
He bowed slightly. Muscle memory from the original, thankfully, because his own body's instinct was to wave.
"Morning."
The salmon tasted real. That was the thing that got him — not the unfamiliar kitchen, not the woman who expected him to be her son, not the school uniform hanging upstairs like a costume for a role he hadn't auditioned for. It was the salmon. Flaky, salted, warm. His chopsticks trembled once and he set them down until the trembling stopped.
The sister — Yui, the memories supplied — slid into the seat across from him with a sketchbook already open. A half-finished cat covered the page. She didn't look up.
"Nii-chan, you look weird."
"Thanks."
"Like you forgot how to be yourself."
His chopsticks paused over the rice bowl. Eight-year-olds were terrifying.
"Still waking up," he said, and ate faster than he should have, because the alternative was sitting in this kitchen with this family that wasn't his family and feeling the edges of something large and dark pressing against his ribs.
Nekoma. I'm enrolled at Nekoma High School.
The name kept circling back. Nekoma. Kuroo Tetsurou's Nekoma. Kenma Kozume's Nekoma. The team that played like blood flowing through veins, that connected every pass and every person on the court into a single organism, that one day would face Karasuno in the Battle at the Garbage Dump while ten thousand people screamed.
And somewhere in Miyagi, a kid with orange hair is walking into Karasuno for the first time. Right now. Today.
He excused himself from the table, went back upstairs, and sat on the bed for three full minutes without moving.
A world where Hinata Shoyo existed. Where Kageyama Tobio existed. Where volleyball matches decided fates and friendships and futures, where every spike and receive carried the weight of dreams that were ridiculous and earnest and real.
He was inside the world of Haikyuu.
And the body he was wearing had never touched a volleyball in its life.
Nekoma High School — Morning
The walk took eighteen minutes. He timed it because timing things kept the panic at a manageable distance.
The body moved wrong. Not injured-wrong — just untrained. The calves had no spring. The shoulders rolled forward from years of hunching over a desk. His breathing got heavy going up a moderate hill, and by the time he reached the school gates, a thin layer of sweat clung to the back of his neck.
One hundred seventy-two centimeters. Maybe sixty-one kilograms. No explosive power. No endurance base. Reaction time probably average at best.
He catalogued the deficiencies the way he used to catalogue player stats — methodically, without attachment, as data points that defined a starting position, not a final one.
Nekoma's campus was bigger than the anime had suggested. Three main buildings arranged around a central courtyard, athletic fields to the east, and beyond the baseball diamond—
The gymnasium.
He stopped walking.
Through the open windows, distorted by distance but unmistakable: the rhythmic thud of volleyballs hitting hardwood. The squeak of shoes cutting on polished floor. A whistle. A voice — deep, carrying, the kind of voice that sounded like it was grinning even at full volume — calling something about rotation.
Kuroo.
His feet wouldn't move. Not toward it, not away from it. He stood on the walkway between the second building and the science wing with his bag strap digging into his shoulder and his pulse doing something complicated in his throat.
Not yet. Not without a plan. You walk in there as a first-year who transferred from Sendai with zero volleyball experience and zero cover story for why you know where every player on that court is going to be before they know it themselves, and you're done before you start.
He turned away from the gymnasium. Found a convenience store two blocks from campus. Bought a nikuman — pork, steaming, wrapped in paper that went translucent from the grease — and sat on a park bench across from the school's east fence.
The meat bun tasted like meat buns. Which shouldn't have been remarkable except that twelve hours ago, by his own internal timeline, he'd been stepping off a curb in Osaka and a delivery truck had been running a red light, and now he was sitting in a fictional world eating a real pork bun with hands that weren't his, and the April cherry blossoms were drifting onto his school blazer like the universe was trying too hard to be poetic.
He ate the whole thing. Licked grease off his thumb. Watched a crow land on the fence post, tilt its head at him, and fly away.
Okay. Here's what I know.
He knew every team. Every player. Every match outcome from the Interhigh preliminaries to the Spring Nationals to the professional leagues to the Olympics. He knew who won, who lost, who quit, who grew, who broke. He knew the exact trajectory of Hinata Shoyo's career arc and the specific day Bokuto Koutarou would enter star mode against Mujinazaka and put the entire stadium on its feet.
He knew everything.
And his body couldn't receive a volleyball without shanking it into the ceiling.
That's the gap. That's the whole problem. All the knowledge in the world doesn't mean anything if the body can't execute. I need to get on that court. I need to build fundamentals from zero. And I need a reason to join the volleyball club that doesn't start with 'I know your entire playbook because I watched you on TV in another dimension.'
Evening practice ended at 6:47 PM. He knew because he was still there — back on the bench, third meat bun of the day sitting heavy in his stomach, watching the gymnasium lights through the chain-link fence. The doors opened. Players filed out in clusters. Track pants, gym bags, towels around necks.
And then: a tall figure with bedhead hair and a grin that carried across fifty meters of parking lot, clapping a shorter player on the shoulder while saying something that made the shorter player jolt and look away.
Kuroo and Kenma. Walking home. Just like that.
Arisu stood up. His legs were stiff from sitting too long. The bench had left a crease on the back of his thighs. He dropped the meat bun wrapper in the trash, hitched his bag higher, and walked to the gymnasium doors.
Closed now. Locked. The smell of floor polish and sweat seeped through the gap at the bottom.
He pressed his palm flat against the door. Cool metal. The ghost of volleyball impacts still humming in the wood framing.
Tomorrow. I walk through these doors tomorrow and I tell them I want to join. First-year transfer, no experience, eager to learn. Keep it simple. Keep it honest — mostly honest. Learn the fundamentals the hard way. Build the body. Earn the spot.
And whatever happens — whatever this world throws at me — don't let anyone find out you know how the story ends.
He turned from the door and started the walk home. His calves ached from the hill.
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