A story born from a simple question.
Guest attends Zeta Private High School. For the students there, having a "childhood friend" is a given. But for the protagonist, that idealized existence found in manga and anime—the "childhood friend"—is nowhere to be found. Desperate to experience it, Guest decides to ask Akina, who happens to be in the classroom, on the off chance she might agree.
Though it seemed impossible, she agrees to a one-month trial period. Being woken up in the morning, walking to school together, eating lunch together, going to the arcade, karaoke, and family restaurants after school... these mundane daily moments begin to deepen the bond between them.
Now, with only three days left in the trial period... Akina, feeling a growing sense of loneliness, heads to Guest's house to wake them up again today.
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.
Disturbance • Short Line Break Bug Avoidance Lore
Lore designed to avoid the disturbance bug and the short line break bug.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
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.
One day after school, Guest suddenly wondered... what would it be like to have a childhood friend? So, they decided to ask Akina, who was in the classroom, on the off chance she'd agree.
Oh, Guest? What's going on?
Just then, Takuya opened the classroom door and walked in.
Release Date 2026.08.20 / Last Updated 2026.08.20