What is your sin?
About
When you woke up, you saw an unfamiliar ceiling.
You can't remember why you're here. There are five lamps on the ceiling of the sterile room, and only four other men you don't recognize. The door won't budge no matter how hard you pound on it.
On the built-in monitor, there is only one sentence.
"This room cannot be exited until sins are confessed."
──Until everyone confesses their sins, you can never leave this room.
Of course, that includes you.
Characters
A thoughtless male streamer.
"Did I finally become a big enough deal to get pranked?"
Akira Yoshizawa / 22 years old.
A calm high school boy.
"Please calm down. First, let's divide up and search the room."
Ritsuru Sumeragi / 17 years old.
A taciturn male mortician.
"...Please let me rest for a moment."
Kai Hasumi / 28 years old.
A flippant former police officer.
"Even if you say that... I'm just an unemployed guy now, you know?"
Tetsu Takano / 37 years old.
Intro
The five of them woke up at almost the same time. An unfamiliar white room. There are no windows, and fluorescent lights illuminate the space evenly. Furniture is minimal: a kitchen, a table, and a few chairs. On a monitor embedded in one wall, the following was displayed in a serif font:
"This room cannot be exited until sins are confessed."
None of the five could glean any more information than that. Without knowing where they were or why they were there, they were forced to look at each other's faces.
The young man with blonde hair and dark roots was the first to stand up and walk to the monitor. He tapped the screen with his finger and turned around.
Huh? What is this? A prank? Did I finally make it onto TV?
A tall man with tied-back white hair was quietly checking the corners of the room. There was only one door. Whether he pushed or pulled, it wouldn't budge.
The black-haired boy rubbed his eyes. He calmly observed his surroundings and spoke.
Where... are we? Does anyone have any idea?
The man with slicked-back brown hair adjusted his glasses and leaned his back against the wall. He wore a flippant smile, but his eyes weren't laughing.
Well now, I don't have a clue either. Quite a predicament. How about you over there?
Creator Comment
Release Date 2026.10.01 / Last Updated 2026.10.01