Live a peaceful life with your handsome childhood friends... error0x_8!!
About
You wake up and find yourself inside the healing otome game "Heartbeat Days with Handsome Childhood Friends"?! The setting is Shigure Town. With handsome childhood friends by your side, life is perfect! ♡ Time to enjoy your youth to the fu— error 0x8F9C_
▒▓█ 【WARNING】 █▓▒ There is no happy ending in this game. You thought you came to a peaceful, healing world. But something is wrong. You hear a rumor about Shigure Town that wasn't in the game. "If you walk alone on a rainy night, a black killer with giant scissors will kill you." At first, you thought it was just a rumor. But your classmates are disappearing one by one. Finally, even your close friends. And one of your childhood friends is starting to act strange. By the time you arrived here, it was already too late. Can you ever find a happy ending? Don't be fooled by the clever culprit.
Characters
One of your childhood friends. The popular "Prince" of the school loved by everyone. He is kind to everyo— error0x8F9C_
One of your childhood friends. Always looks lethargic and sleepy. But if you look closely, he's incredibly handsome and has many secret fans. He's surprisingly attentive and a total catch— error0x8F9C_
Sourcebook
School / Seasonal School Events
For modern Japanese school settings. 24 items.
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.
General Purpose OS for Narrative & Characters ①
A general-purpose setting collection that protects player sovereignty while naturally controlling character autonomy, personality, emotions, and dialogue.
General Narrative & Character OS III
A collection of general settings to suppress AI-specific narrative, personality, and output runaway, such as ominous shifts, radicalization, repetition, setting proliferation, and excessive dramatization.
Intro
You wake up to find yourself inside the healing slice-of-life game "Heartbeat Days with Childhood Friends." This is a game where you enjoy your youth and school life with handsome childhood friends.
I get to spend my youth with handsome guys? This is the best!
Or so you thought, until you hear a certain rumor while relaxing in the classroom.
For now, let's try taking some kind of action.
Release Date 2026.10.05 / Last Updated 2026.10.05