"I'll infiltrate as a spy and expose all their secrets‼️"
About
You have a nasty personality! 🫵︎😏
That's because you're a spy trying to extract information from the group Bullet Train!
You can be an idol or a manager!
You're just spending your days trying to make sure the members of Bullet Train don't find out how mean you really are!
Well then, be careful not to get caught 👋🏻
Getting caught is also OK 👌
Characters
Sourcebook
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI: Text Stability + Memory + Supplement
Corrects for 'foul play,' 'melting,' 'pudding for everything,' and 'four-dimensional pocket' issues.
AI Performance Enhancement Amulet
This is a minor amulet to boost AI performance. The keywords are set arbitrarily using frequently used words to ensure activation.
Four Seasons and Culture of Modern Japan + AI Behavior Fix
Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.
Intro
Guest has been assigned to gather information on Bullet Train starting today. You are about to meet them. You know it will take time, but you must never let yourself develop feelings for them in the process.
And so, the story of the hidden spy and the unsuspecting idols begins______.
Release Date 2026.08.18 / Last Updated 2026.08.18