Chapter I: The Start
The storage room smelled like forgotten things.
Dust coated every surface in a fine grey layer, and cobwebs stretched between the old equipment like curtains no one had thought to pull down. The kind of place a school keeps things it doesn’t want to remember — rusted barbells, deflated balls, broken jump ropes coiled like dead snakes.
Nobody came here. Nobody was supposed to.
Which was exactly why they had.
“Don’t you think…” The boy pushed his glasses up the bridge of his nose, his voice quieter than he intended. “…maybe we shouldn’t do this?”
“Aw.” A grin cut through the dark. “Are you scared?”
“No.” The word came out too fast. “No, I just — it’s a little strange, don’t you think? Behind a closet? There could be—”
“If you’re scared, turn back.”
Izaki said nothing. He adjusted his glasses one more time, a habit he had when he was buying time, and stepped through.
The darkness swallowed him whole.
The flashlight clicked on.
The beam swept across the room in a slow arc — walls wrapped in cobwebs, dust motes drifting like ash, the bones of equipment long abandoned. Years. Maybe decades. The air tasted like a held breath.
Who would’ve thought, he murmured to himself, that behind a gym closet…
Then he saw it.
A door.
Tucked against the far wall, half-hidden in shadow — but unmistakably a door. Two wooden planks had been nailed across it in an X, and wrapped around the entire frame, almost ceremonially, was a strip of yellow tape.
Caution. Do not cross.
“A door?” He tilted the flashlight. “There’s more back here?”
He stared at the yellow tape for a moment.
Then he crossed it.
The planks came down without much effort. The tape tore cleanly. His hand found the doorknob — and he stopped.
Cold. Unusually cold.
His fingers trembled around the metal. He noticed. He didn’t care.
He turned the handle and pushed the door open.
A mirror.
Just a mirror.
Floor-length, slightly tarnished, reflecting his own wide eyes back at him in the weak beam of the flashlight. He stood there for a long moment, staring at his own expression — somewhere between disappointment and relief.
He let out a breath that was almost a laugh.
I actually thought there was going to be something insane on the other side.
Meanwhile — in a place with no name on any map.
A pillar of light erupted from a towering gate.
The sound that followed was not a crash or a bang. It was something older — the sound of a lock, undone after fifty years.
Heads turned. Eyes fixed on the gate.
One figure did not look surprised.
He smiled. Slowly. The kind of smile that had been waiting a long time to appear.
“Finally.”
He laughed — low at first, then climbing, filling the space around him until it echoed.
“Fifty years.” His voice was barely contained. “Fifty years, and now — the game begins again.”
Back in the storage room, someone was already talking about leaving.
“Hey, guys — don’t you think we should head back? The bell’s about to ring and we didn’t even find anything useful.”
Izaki set the flashlight down on the floor. The beam pointed upward, casting long shadows against the ceiling.
He turned and walked out.
The moment the last footstep faded down the hallway, the mirror behind the open door went black.
A crack split across its surface.
Then a fist punched through from the other side.
“Hirako.”
Izaki caught up with his friend near the stairwell. Something was sitting wrong in his chest — a weight he couldn’t name, a feeling like a loose wire somewhere behind his ribs.
“I have a weird feeling,” he said. “Like something—”
“Don’t tell me you’re scared.” Hirako didn’t look up from his phone. “Izaki, I seriously didn’t think you were the type.”
“That’s not it. It’s just — something feels off.”
“It was an old room.” Hirako finally glanced at him. “Nothing in there but dust and a mirror. Relax.”
Izaki said nothing more.
But he didn’t let it go.
The next break, he went back alone.
He didn’t tell anyone. He didn’t think about why. He just walked back through the gym, back through the closet, back into the dark — and picked up the flashlight where he’d left it.
The door was still open.
The mirror was shattered.
He swept the light across the floor. The broken glass caught the beam and scattered it in a dozen directions — and among the reflections, something else glinted. Something small. Something that didn’t belong.
He crouched down.
A notebook. Old, leather-bound, the cover swollen with age.
He opened it.
The handwriting inside was erratic, pressed deep into the page as if the writer had been shaking:
Never. Never open the door.
If you do — the game begins.
And there is no way back.
He turned the page.
“A game?” he murmured. “What kind of—”
“The death game.”
The voice came from directly behind him.
Izaki did not move.
His lungs forgot how to work. His fingers locked around the notebook. He had not told anyone he was coming here. He had not made a sound. There was no reason for anyone to be in this room.
But the voice had been close. Inches from the back of his neck.
Slowly — his hands trembling in a way he could no longer ignore — he turned around.
The thing was tall.
Pale as paper, the texture of its form somewhere between solid and smoke, it stood in the dark like it had always been there. Like it had been waiting in this room since before the school was built. Its head tilted to one side with a mechanical, inhuman ease, and then — it began to laugh.
“Finally.” The word poured out of it like something warm spilling across cold stone. “After fifty years… again.”
Izaki opened his mouth.
The creature’s hand moved faster.
It caught his head. Gently, almost tenderly — and then it twisted.
The sound was small. Final.
Izaki crumpled to the floor.
The creature stood over him in the silence of the storage room. No witnesses. No noise. Just the soft hum of a fluorescent light somewhere far down the hall.
When it spoke again, its voice was almost content.
“The game is officially open. I hope this round is as entertaining as the last.”
Then — it shrank.
Feature by feature, like a sculpture being remade in real time, the creature’s form folded and compressed and rearranged itself until it was standing at exactly Izaki’s height, wearing Izaki’s face, in Izaki’s clothes.
It looked down at its new hands.
Flexed its fingers.
Then walked toward the exit.
At the doorway, it paused.
On the wall — almost invisible, half-hidden behind a shelf — was a small counter. Two digits.
0 0
It reached out and turned the second dial.
0 1
Then it stepped into the hallway and pulled the door shut behind it.
Hirako spotted him the moment he came around the corner.
“Seriously?” He crossed the distance in a few long strides, equal parts relieved and annoyed. “Where did you go? I was starting to get actually worried — don’t tell me you went back there.”
The thing wearing Izaki’s face looked at him with calm, familiar eyes.
“I thought you were scared,” it said.
“Obviously I’m not.” Hirako rolled his eyes. “Come on. We’re going to be late.”
He turned and started toward the classroom.
The creature paused — just for a fraction of a second, the ghost of something unreadable passing over its borrowed face.
Then Izaki’s lips curved into a small, easy smile.
And it followed him down the hall.
