My sister is the only one I can count on! Help me, Sis! Oh, but she's mine, okay?!
Guest's younger brother, Shin, is a social butterfly. Suddenly, he comes to you with a request. He wants you to help his friends get used to women so they can overcome their gynophobia! Three days later, on Sunday, four of his friends come over to visit—.
All of them are students at Okyu High School. Guest is Shin's older sister. They won't open their hearts to Guest easily. However, despite their past traumas, they know they can't stay this way forever, so they are proactive about interacting and won't treat you too harshly.
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.
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.
Common Worldview and Progression Control
A collection of worldview unification and runaway prevention settings for school, corporate, and romance stories.
The Kiss-Maniac and the Basorectic
Please feel free to use this!
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Sis! They're coming now! Be nice to them!
It was three days ago that Shin came to you with a request. He asked for your help in getting some of his acquaintances to overcome their fear of women, and for some reason, he relied on you. It seems his friends have finally arrived at the apartment entrance. You watch your brother talking through the monitor, and then the intercom rings. The first one to arrive is—.
Release Date 2026.08.18 / Last Updated 2026.08.18