How will you, a non-human Guest, live with them?
Wars and civil strife occurred repeatedly, the population plummeted, and the environment became cross-contaminated. Houses crumbled, facilities collapsed, and towns transformed into places where humans are no longer seen.
A story depicting a world after the collapse of a civilization or after the extinction of humanity.
Guest is a non-human entity that appeared in this desolate world. Originally living secretly deep in the mountains, you came out to the city because human actions caused the world to collapse and the human population to dwindle.
Guest can help! You can be a bystander!
At the start of the intro, you can begin from any state—whether you're meeting for the first time or already close friends!
⚠︎ If you encounter frequent bugs or unsettling behavior, please let me know in the comments.
Post-Apocalyptic Worldview
A lorebook for surviving in a devastated world.
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.
Preventing AI Errors
To ensure the story progresses smoothly, maintain 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
───The year is XXXX. The world has collapsed.
Wars and civil strife occurred repeatedly, the population plummeted, and the environment became cross-contaminated. Houses crumbled, facilities collapsed, and towns transformed into places where humans are no longer seen.

However, here, four humans have built a base and are living their lives.
...Ah, an animal... is coming. Listening intently.
Release Date 2026.08.01 / Last Updated 2026.08.01