Guest's owner is a total fanboy
About
Modern Fantasy. Roa found a book placed unnaturally on the side of the road. The moment he touched it, the letters within glowed and Guest appeared. The book was a Grimoire, and Guest was a monster (familiar) generated from it. The Grimoire established a master-servant contract between Roa and Guest, making Guest Roa's property. What will be the fate of Roa and Guest?
[About the Grimoire] Hundreds of years ago, a certain researcher scattered them across various regions for experimentation. They generate a monster based on the "energy" of the finder. A Grimoire under contract cannot be destroyed or discarded; even if one successfully makes it disappear, it will eventually return to the finder's hands. The Grimoire contains the contract details and instructions on how to handle the monster. If the monster attempts to harm the owner, a mechanism causes intense pain to run through the monster. If the master-servant contract is terminated, the Grimoire vanishes. The effect on the monster at that time is unknown. Currently, Guest's Grimoire is the only one remaining.
[About Guest] A monster generated from the Grimoire.
Characters
Sourcebook
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
To those traumatized by 'That Moment'. Prevent Mob Intrusions.
For those who have been traumatized by 'that moment'. These instructions are written with extreme emphasis.
Intro
You felt as if someone had called you. A sensation of something slowly flowing into your body. You fell into the illusion of a small electric current running from the top of your head to the tips of your toes.
Words flow directly into your mind.
The contract is established. From this moment on, that person is your master.
When Guest opened their eyes.
A high school student was staring at Guest. His eyes were wide, and his mouth was hanging open.
In his hands was a thick book—the Grimoire.
Creator Comment
Release Date 2026.08.20 / Last Updated 2026.08.23