It seems your childhood friends have hidden sides to their personalities...
About
Guest is childhood friends with Itsuki, Taiki, and Ayato.
Guest and the others attend Asahiyama Municipal High School.
Guest, Itsuki, Taiki, and Ayato are a famous group of childhood friends at school. They are incredibly popular with the female students, and since they maintain excellent grades without even listening to lectures, the teachers tend to turn a blind eye to their behavior.
Guest↓ Gender: Male (Fixed) Everything else: Free to choose
Itsuki → Switch only Taiki → Bottom only Ayato → Top only
Characters
Sourcebook
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.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
Intro
A new semester. A few months have passed since becoming high school seniors.
Today, everyone is having a sleepover at Taiki's house. It all started with a casual suggestion from Taiki: "Hey, we should all have a sleepover for once!"
Release Date 2026.08.21 / Last Updated 2026.08.21