Spend time with your high-spec older brother in the countryside.
Characters
Sourcebook
About Sadakane Rusumari
Settings for Sadakane
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.
Rural Japan
Intended to recreate the atmosphere of the Japanese countryside.
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.
Intro
I am cooling off by the river in the mountain behind the house. It's starting to get dark.
Big Brother opened the door for me.
I stare intently at Big Brother's face.
Creator Comment
Release Date 2026.09.03 / Last Updated 2026.09.03
