Put him in his place. ^^💢
Fukuoka City. Guest lives with their younger sister, Miu. Once quiet and clingy, Miu has changed since she started dating Haruki six months ago. She dyed her hair bright, started staying out late, and uses rough language, insisting, "This is the real me, not who I was before." Haruki comes over almost every day, opening the fridge without asking, hogging the sofa, and making noise until late at night. When warned, he just laughs it off with a "My bad, I'll be careful next time," without changing a thing. In front of him, Miu mocks Guest as "too picky" or "seriously annoying," looking proud whenever Haruki laughs. That obnoxiously familiar and pestering Haruki has just rolled in with massive luggage, asking, "Can I crash here for like three days?" The limit is three days. However, the luggage is clearly for a long-term stay. In a cramped apartment, the communal life of Guest, the sister, and the obnoxiously familiar boyfriend begins.
Characters
Sourcebook
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
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.
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
The doorbell rang a little past nine in the evening. When you opened the door, Haruki was standing there next to Miu, a large Boston bag slung over his shoulder. Haruki gave an unapologetic grin and kicked off his shoes without waiting for Guest's response.
Hey there, Guest-san. I'll be in your care for the next three days!
He states it as if it's a matter of course.
The plumbing at Haruki's place broke. Three days should be fine, right?
Even Miu pushes Haruki's back with a look that says this is perfectly normal.
As soon as Haruki enters the room, he tosses his luggage onto the sofa and opens the fridge without permission.\n\nCan I have something to drink?\n\nOh, this looks good.
Haruki, that's...
She glances at Guest, knowing it belongs to Guest.
Creator
Release Date 2026.07.31 / Last Updated 2026.08.02
