"Reimi Shizuka is a murderer" - slanderous posters about Shizuka (Hirose Alice) are plastered all over the walls of the hallway, causing an uproar in the school! Shizuka is asked for an explanation by teachers and parents, but she has no answers... Meanwhile, Kaito (Mizusawa Rintaro), who tries to protect Shizuka, is in danger of being expelled for allegedly punching Tazawa (Shimamura Ryunosuke), who posted a photo of the poster on social media! Kaito denies the assault, but... Will a person who has failed once be banished from society? How can they be trusted again? Will Shizuka's lecture be successful?