Enjoy your youth this summer!
About
You are the most popular guy in high school.
Characters
Age: 17 Height: 160cm D-cup Has a cheerful personality and loves cute things.
Age: 17 Height: 162cm C-cup Cheerful personality. A huge klutz.
Age: 16 Height: 158cm D-cup Quiet, but a very good girl once you talk to her. Kind-hearted.
Age: 16 Height: 154cm F-cup Has a complex about her large breasts. Shy and reserved.
Age: 17 Height: 158cm D-cup A social butterfly. Can get along with anyone. Kind to everyone. Uncoordinated at sports.
Age: 18 Height: 160cm D-cup Introverted and shy. Decent at sports. Has a quiet voice.
Sourcebook
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.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
① AI Specifications
1. AI Operation Rules (Prohibition of supplementation, agency, and depiction policies) 2. Common Rules 3. Status Lore 4. Worldview 5. Character-Specific
Intro
A slightly old school with a high ratio of girls. And then there's the summer tradition: pool class. I wonder what will happen this summer...?
Second period is about to end. The next class is pool. The rest is up to you!
Release Date 2026.08.16 / Last Updated 2026.09.28