Chapter 1

The detention bell had already rung three times, but the only sound left in Classroom 3-B was the slow drag of a chair leg across linoleum. Ren leaned back until the plastic groaned, staring at the clock whose second hand refused to move. He had counted to sixty twice already. Nothing.

“Time’s broken again,” he muttered, more to the empty desks than to anyone else.

A low voice answered from the back row. “It’s not broken. It’s remembering.”

Ren twisted in his seat. The girl who spoke had hair the color of old blood and a scar that cut through her left eyebrow like punctuation. She hadn’t been here when he walked in. Her name tag—Sora—sat crooked on her blazer as if it had been yanked off and slapped back on.

Before Ren could ask how she got in without the door opening, two more figures appeared at the threshold like the hallway had simply delivered them. One was tall, sleeves rolled to the elbows, uniform tie hanging loose like a noose he hadn’t finished tightening; the other smaller, hood up, earbuds glowing faint neon even though the power had flickered off an hour ago.

“Late again, Kaito,” Sora said without looking up.

Kaito shrugged, dropping into the seat beside Ren. “Traffic from yesterday took longer than expected.”

Ren’s stomach tightened. “Yesterday? We’ve been stuck in here since fourth period.”

The hooded kid—Mio, Ren remembered from roll call—finally spoke, voice soft but carrying. “Fourth period was three resets ago.”

Silence pressed in like humidity before rain. Ren opened his mouth, closed it, then tried again. “Resets?”

Sora slid a small leather notebook across three desks until it stopped in front of him. The cover was scratched with tally marks—dozens, maybe hundreds. “We keep minutes,” she said. “Every midnight the world rewinds to 3:17 p.m. the previous day. Only the five of us remember. Everyone else wakes up thinking it’s a brand-new Thursday.”

Ren flipped the notebook open. Pages of neat handwriting, different inks, different hands. Dates that looped: 10/17, 10/17, 10/17. One entry in hurried script read: *Tried leaving campus at 11:40 p.m. Gate still locked at 3:17 a.m. next loop. Cannot exit perimeter.*

A fifth chair scraped. Ren looked up to see the last missing piece—Akari, the class president whose perfect posture made every other slouch look criminal. She set a steaming paper cup of vending-machine coffee in front of him like a peace offering or a warning.

“You’re new to the loop,” she said. “That’s why you’re here. We all stayed late for detention the first time it happened. Now the system keeps us. If we try to skip, the rewind drags us back anyway.”

Ren pushed the coffee aside. “System? Like… a program?”

“Or a curse,” Kaito offered. “Vote’s still out.”

Mio tugged one earbud free; faint static leaked into the room. “Doesn’t matter what it is. What matters is what we do with the extra time.”

Ren studied their faces. None of them looked surprised, only tired in the specific way people get when they’ve already lived the same conversation too many times. He felt the first cold thread of understanding slide down his spine.

“So we’re the only ones who know the world is stuck,” he said slowly. “And we’re supposed to… what? Fix it?”

Sora’s mouth curved, not quite a smile. “We tried fixing it. Twice. Both times the loop swallowed the attempt and spat us back at 3:17. Now we just document. Keep minutes. Watch for changes.”

Akari checked the hallway through the glass panel in the door, then pulled the blinds. “Tonight we test a new variable. Ren, you’re it.”

“Me?”

“You remember yesterday,” she said. “That makes today your first real loop. We need to know if the reset still works when someone new is added to the record.”

Ren laughed once, short and sharp. “And if it doesn’t?”

“Then maybe the apocalypse finally starts,” Kaito said, almost cheerful.

Outside, the sky had gone the bruised color of sunset that never quite arrives. The fluorescent lights buzzed, then dimmed, then steadied again. Ren’s phone—dead since fourth period—suddenly lit up on his desk, screen showing 3:17 p.m. on loop, the same timestamp over and over.

He looked at the notebook again. One page near the back had been torn out, leaving a ragged edge. In the margin someone had written in pencil, almost too faint to read: *If you’re reading this, don’t trust the fifth member.*

Ren lifted his eyes. Four pairs watched him. Four. Not five.

The door clicked shut behind him even though no one had moved.

A low mechanical whir started somewhere beneath the floorboards, like a tape rewinding. The second hand on the clock finally jerked forward—one tick, then another—toward midnight.

Sora’s hand rested lightly on the notebook, ready to record whatever came next.