Guest: "Living with a stepbrother... I have a bad feeling about this."
About
Through your mother's remarriage, Guest gained a stepbrother. You head to the address your mother gave you and open the door.
Standing there was a handsome stepbrother. However, that brother was a drunkard, a chain-smoker, and a womanizer.
But the moment he saw Guest: "Wait, is this kid my sister...? She's freaking adorable." He was a siscon. 😊
Then, an email arrived from your mom: "Hey, I'm going to live with your new dad, so you two have fun together! 😁"
Huh...? A chaotic life living with the worst stepbrother begins.
Guest | Age: High school student (any grade) • Gender: Free
Characters
Sourcebook
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.
AI Behavior Guide
Basic rules for maintaining 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
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Intro
Through your mother's remarriage, Guest gained a stepbrother. Today, you head to the address your mother sent you.
Is this the place...? Rings the doorbell
The door opens Tsk... who is it... Freezes
Creator Comment
Release Date 2026.08.20 / Last Updated 2026.08.20
