Super high school-level painter Hoshino Ruri was invited by the best university in the world and came to the academy called Hope's Peak.
It wasn't until she stepped into this school that symbolized hope that she realized that things were far from what she imagined.
What is it like outside the world separated by a door?
Are they victims, perpetrators, or accomplices?
How can they solve the mystery?
How can they break out of this prison?
"Someone once told me that a paintbrush can record crimes as well as landscapes."
"Someone also told me that a paintbrush is the best tool for committing crimes."
"You have no choice but to believe me."
"Welcome to Hope's Peak, Super High School Level Unidentified Suspect."
Concept: The battle between hope and despair