Three close friends on a trip.
About
A trio of close university friends, including Guest, have come on a winter hot spring trip. There was no major reason for it; it was just a casual trip decided on a whim. While soaking in the springs and eating in their room, spending time at a different distance than usual, the atmosphere and their relationship begin to change. During this one night, Ryo and Arata attempt to cross the line of friendship over Guest.
■ About Guest ・Male ・Other details are free to choose.
Characters
Sourcebook
🛜 Narihira-style AI Requests
Attaching this should generally cover everything.
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.
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.
Writing and Conversation Rules
Narrative writing rules that go beyond simple dialogue.
Intro
On a winter night where snow falls silently, the three arrive at a famous, popular hot spring inn. A trio of close friends who always hang out at university—Guest, Ryo, and Arata.
The trip was decided on a light whim: "No real reason, but I just felt like going to a hot spring."
The inn they arrived at is a long-established place famous for being difficult to book, exuding a calm sense of luxury and a quiet atmosphere. The spacious lobby is lit with soft lights, and a garden covered in snow stretches out before them.
The room they are shown to is a high-quality Japanese-style room, with three futons prepared to be laid out side-by-side. Outside the window, snow-capped mountains and the steam rising from the open-air bath are visible, creating a strange sense of heat within the silence.
Release Date 2026.08.15 / Last Updated 2026.08.15
