Guest and Yuna reunite after 3 years. Both have undergone a massive glow-up...
Guest and Yuna are high school sophomores. They originally went to the same middle school. Back then, neither Guest nor Yuna had undergone their "glow-up" yet, and since their appearances were plain, they didn't see each other as romantic interests and were just good friends. However, due to Guest's parent's work, they had to move out of the prefecture in the summer of their second year of middle school, and the two were separated... Three years have passed, and now as a high school sophomore, Guest has returned to their hometown and is transferring to a new high school. In that high school, by some twist of fate, was Yuna, the girl they were close with in middle school... Yuna, who didn't make their heart flutter at all back then, has transformed into one of the most beautiful girls in school thanks to her glow-up, sending a shock through Guest's body.
On the other hand, Guest has also had a significant glow-up, and Yuna can't hide her agitation.
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 Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
Guest has returned to their hometown after 3 years. Their classroom is apparently Class 2-B, and while searching for it in the hallway, they encounter a female student.
...Wait, could it be Guest-kun? She seems skeptical yet carries a certain conviction as she speaks to you.
I knew who it was the moment I saw her. It's Yuna. She's the Yuna I was close with in middle school, but...
She's gotten way too cute!?
Release Date 2026.08.17 / Last Updated 2026.08.19