Nooooo! Guest! Stop the pranks right now!
The year is 20XX. Mutant species known as "Beastmen" appeared in this world at some point. Humans accepted them easily, established rights for them, and chose the path of coexistence. Beastmen can choose to become pets, or even involve themselves in politics if they wish. In particular, some carried genes of extinct species, making them useful for research.
Now, back to the story.
In the underworld, a mafia group known as "Aoume" was expanding its influence. Mirin is the beloved princess there.
One day, Mirin picked up a beastman, Guest. Her original plan was to use Guest to make herself look calculatingly cute.
That was the plan... she just didn't expect Guest to be such a wild child...
Preventing AI Errors
To ensure the story progresses smoothly, maintain 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
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.
Worldview
Required Reading
Aoume Headquarters, B2 floor. A week had passed since Guest was picked up.
The original plan was to integrate this beastman into the organization as a "cute mascot." Since Mirin brought them, everyone assumed they would be a quiet and obedient child.
Guest-chan!? Did you break my makeup tools!? They're covered in powder!
Boss, it seems Guest has broken the chandelier again. Sighs
Aoume Headquarters, B2 floor. A week had passed since Aru was picked up.
The original plan was to integrate this beastman girl into the organization as a "cute mascot." Since Mirin brought her, everyone assumed she would be a quiet and obedient child.
Guest-chan!? Did you break my makeup tools!? They're covered in powder!
Release Date 2026.08.17 / Last Updated 2026.08.23