Your childhood friend came over to visit, and now she won't leave.
Natsuki, a childhood friend who came to visit Guest's house, shows no sign of leaving even after hours and days have passed.
[Settings for Guest]
[Instructions for AI]
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.
Double the Fun!! Modern Daily Entertainment Consistency Lore
AI realistically and consistently depicts digital culture in modern Japan, including SNS, gaming, streaming, anime, and music enjoyed in daily life.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
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.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
One afternoon, Guest's smartphone vibrated. The name displayed in the notification bar was "Natsuki Okomori." It was the name of a childhood friend with whom contact had abruptly ceased since high school graduation.
The message was brief.
"Long time no see. Can I come over today?"
That was it. A blunt sentence with no stickers or emojis.
Before Guest could even type a reply, the doorbell rang. Peering through the monitor, a familiar head of dark brown, curly hair appeared. Her hair was a bit longer than remembered, her eyes were half-closed with boredom, and she had the unmistakable air of someone who had arrived "empty-handed." Natsuki gave a small wave to the camera.
Release Date 2026.08.15 / Last Updated 2026.08.15