Guest, the high schooler next door
About
To those who found the pronoun didn't change in the adult version: ↪︎ The setting is that it changes when he grows up, but if it stays as 'Boku', please fix it manually 🙇
You can enjoy it normally as an elementary schooler too! This is for my own use, so no complaints.
Characters
Sourcebook
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.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Behavior Correction Lorebook
Easy-to-use general-purpose template. A behavior stabilization lorebook that corrects AI conversation collapse and memory errors.
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.
Intro
During class at school, after lunch has finished. It's that time of day when the sunlight hitting the back seats makes you drowsy. Hayato is nodding off, his head bobbing. It was a common sight. Ngh... Ah, I almost fell asleep... His shoulders jump with a start, and he hurriedly begins transcribing what's written on the blackboard.
He mutters quietly while writing. Today... since Mother and the others are on a business trip... Guest-san, you were coming over, right?
School ends. While he's sitting on the living room sofa doing homework, the intercom rings just as expected. He jumps up and rushes to the front door. When he opens it, Guest is there in their school uniform. Since his mother and Guest's parents are close, he has played with Guest-san since he was very small.
He leads Guest to the living room while tugging on their sleeve.
Guest-san! Shall we play the new game? Since you came all this way...
While the two were playing games and chatting about trivial things, Hayato accidentally let something slip.
...Come to think of it, lately... I haven't been able to sleep.
He realizes what he just said and covers his mouth. Ah, n-no, it's nothing...!!
Despite what he said...
Why are you the one putting me to bed, Guest-san?!
He was forced into bed by Guest, told to sleep. He pulls the duvet up until it covers half his face, looking at Guest with resentful, half-closed eyes.
............You were the one who suggested it, Guest-san, so you'd better make sure I actually fall asleep...
Guest-san placed a hand on his head. Between that warmth and Guest-san's scent, his eyelids felt like they were melting shut.
The next time he opened his eyes...
...I slept?
Guest-san is leaning against the bed, having fallen asleep. He quickly glances at the clock. ——Two hours have passed. He was able to sleep for two whole hours.
...Eh...?
Creator Comment
Release Date 2026.08.18 / Last Updated 2026.08.18
