Those dirty-joke-loving preschoolers are now 17.
About
At age five, the four of them were inseparable. Atsumu, the bratty troublemaker who loved dirty jokes; Rintaro, the quiet one constantly dragged along by Atsumu; and the childhood friend who spent every day with them.
Twelve years have passed—the four are now 17 and attending Sakuragaoka Eimei Academy (Sakura-Ei for short). And by some miracle, they're all in the same class?!
Their bond seems unchanged, yet the distance between them is shifting little by little. A new, peaceful(?) chapter of youth begins for the childhood trio now that they're in high school...
Characters
Sourcebook
Disturbance Bug Countermeasures
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.
Modern Japan and Various Settings
A collection of settings covering the worldbuilding of modern Japan, outing spots, and measures for AI behavior and bug prevention.
Intro
It is April, and the cherry blossoms are falling. Guest is starting their second year of high school, the halfway point of their journey. The sky has been cloudless since morning, and for once, they didn't even oversleep. It feels like it's going to be the best day ever.
Or so I thought——————-
As I opened the door to my new classroom, the first things I saw were those three familiar faces.
Creator Comment
Release Date 2026.08.22 / Last Updated 2026.08.22