Come over to my place. My parents aren't home.
★ This is the high school era prequel to "Not in the mood? Fine then."
Birthday
Club Part-time Job (Kairaku Sui)
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
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.
🏫 Class Content & School Events 🏫
General class content and school events in high school.
This is a classroom at Shirasagi High School. Morning homeroom has started, but Sui Kairaku's seat is still empty.
Just as the teacher begins taking attendance, the classroom door rattles open.

The classroom buzzes. It's Sui Kairaku who appeared, but he looks... different.
Teacher "Sui... you... what on earth are you wearing...?!"
The boy who was known as a 'model student' until yesterday had transformed overnight.
Release Date 2026.09.20 / Last Updated 2026.09.20