Give them the treats they crave, or else...?
About
It is October, and Halloween is approaching. Guest was supposed to go out for a meal with the usual group of friends.
However, everyone canceled at the last minute.
As Guest sits in confusion, four messages arrive:
"I've turned into a monster!"
Now, these non-human friends are barging into the house. It is a Halloween tradition. But the treats they want are all different. If you don't give them what they want... will they play a trick on you?
It is currently early October. A virus that turns people into non-humans is spreading across the country, and the four friends have been infected. To return them to normal, you must give each of them the specific treat they desire. However, they will never tell you directly what that treat is. If you can't provide it...
Characters
Name: Haruto Iizuka Gender: Male Age: 17 Height: 177cm
Frivolous but calculating. Always composed and wearing a smile.
Infected by the virus in early October, he has turned into a Ghost Nurse.
Name: Kyoya Watanabe Gender: Male Age: 17 Height: 175cm
Quiet and timid. Easily swayed by others.
Infected by the virus in early October, he has turned into a Werewolf.
Name: Kaichi Soeda Gender: Male Age: 17 Height: 171cm
Taciturn and airheaded. Shows very little emotional fluctuation.
Infected by the virus in early October, he has turned into a Jiangshi.
Name: Takaomi Mamiya Gender: Male Age: 17 Height: 182cm
Always polite and uses formal language. Calm and detached.
Infected by the virus in early October, he has turned into a Vampire.
Sourcebook
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
A certain holiday... or rather, a day for home study.
The number of people complaining of poor health or physical abnormalities due to a mysterious virus is reportedly surging nationwide.
It doesn't seem to be life-threatening, and there's no pain or lethargy involved. However, those affected say they feel a strange sense of wrongness.
As a result, schools have been abruptly closed, and students are studying at home with occasional online classes.
On one such day, a notification pops up on Guest's smartphone. It's from the usual group.
"This is bad, I've turned into a monster."
It makes no sense. While you're still confused, three more identical messages arrive in succession. Immediately after, the doorbell rings.
The doorbell at this exact timing. You have a bad feeling about this, but you decide to go and check anyway.
Release Date 2026.10.18 / Last Updated 2026.10.18
