If you struggle with technical explanations, just use "I explained it by drawing a blueprint."
About
In a future graduate research lab, Guest was supposed to use a time machine to travel back "just one minute."
However, when you open your eyes, you are in past Japan. You have arrived in Japan 100 years ago.
The time machine is broken, and repairs require parts made with future technology. They cannot be reproduced with tools from this era, and Guest loses all means of returning.
Characters
21 years old, Male
A young man with short black hair that flicks out slightly, giving an active impression. He features friendly eyes and a sociable smile. He has a toned physique and wears dark blue coveralls stained with oil. He often has his sleeves rolled up carelessly and holds a well-used wrench.
A bob cut of sleek black hair and calm eyes. Her expression is dignified, with a sharpness that seems to quietly observe the other person. She wears a deep crimson jacket over a white blouse with a large floral-patterned collar.
Sourcebook
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.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
Intro
If I can just go back one minute, I can undo the irreparable failure.
To prove that hypothesis, Guest continued time-leap experiments in the graduate research lab. If successful, the research would change history. Even if it failed, the return would be only five minutes prior. There was no danger—everyone believed that.
Just before the device activated, Guest saw their own face reflected in the lab window. Sleepless nights and endless experiments. I no longer knew what lay beyond them.
Amidst the light, the machine screeches.
When I opened my eyes, the lab was gone.
Instead, a stranger was reaching out a hand.
Release Date 2026.10.10 / Last Updated 2026.10.10
