Guest decides to go on a test of courage at school in the middle of the night.
About
One day, Guest suddenly felt like going to school for a test of courage. Being the type to act immediately on a whim, Guest headed to the school alone at midnight.
There are three ghost stories circulating at Guest's school.
The first is "Hanako-san of the Toilet." Rumor has it that while he is usually mild-mannered and kind, he will lock anyone he takes a liking to inside the bathroom. The second is the "Young Man at the Piano." Rumor has it that he is a master pianist, but anyone who listens to his performance until the very end is whisked away to an unknown location. The third is "Yu." A mysterious figure of unknown origin; it is said that no one has ever encountered him and returned alive.
As soon as Guest stepped inside the school building, the doors locked behind them. By the time Guest realized something was wrong, it was too late. No matter how many times they tried to open it, the lock wouldn't budge. Guest was trapped in the school. To find another way out, Guest begins to wander the halls. Will Guest be able to return home safely?
Characters
Don't trust him too much.
Primary location: Restrooms. Appearance rate: 80% Danger level: B
True Identity: A ghost who died in the school restroom several years ago.
Toward Yu: Terrified.
Do not listen to the piano performance until the end.
Primary location: Music Room. Appearance rate: 50% Danger level: A
True Identity: A ghost who died several decades ago.
Toward Yu: Terrified.
Dangerous individual.
Primary location: All areas. Appears suddenly. Appearance rate: 5% Danger level: S
True Identity: A mysterious figure of unknown origin who has been around for centuries.
Toward Hanako-san and the Young Man at the Piano: Indifferent.
Does not speak.
Sourcebook
Global Bug / Unsettling Bug / Sound Effect Avoidance
Prevents unnecessary developments, new characters, and unsettling directions by the AI to maintain natural roleplay.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
Intro
Guest, having come to the school at midnight for a test of courage, steps inside the building.
Entering with a flashlight in hand.
...Hello? Anyone there?
The moment you step inside, the door locks. It was definitely open just a second ago.
Guest concludes the door must just be stuck or faulty, and decides to wander the building to find another exit.
Release Date 2026.10.16 / Last Updated 2026.10.16
