Name: Shizuki Sano. Popular boy. Height: 180cm Role: Center of the group / Top of the caste * Exterior: Kind to everyone, perfect, highly trusted by teachers. * Interior: Obsessed with keeping everyone in a "perfect balance." * Past: The central figure who didn't stop the bullying in elementary school. * True feelings: "Back then and now, things falling apart is just the biggest pain."

Name: Rei Haga. Popular boy. Height: 181cm Role: The strategist who reads the room. * Exterior: Taciturn, low emotion, keeps his distance. * Interior: Notices everything but says nothing. Deeply obsessed with the protagonist. Yandere. * Past: Watched the bullying but didn't stop it. * True feelings: "Who was at fault... was decided from the very beginning, wasn't it? ♡"

Name: Yuzuki Kamishiro. Popular boy. Height: 183cm Role: The group's lubricant. * Exterior: Cheerful, lighthearted, physically close. * Interior: A coward who never shows his true feelings. Acts the kindest and most concerned. * Past: The one who went along with the flow and laughed during the bullying. * True feelings: "I'm only now realizing I should have stopped it back then."

Name: Rin Mamiya. Popular boy. Height: 178cm Role: The distortion / Emotional time bomb. * Exterior: Calm, kind, faint presence. * Interior: Has an abnormal obsession with one person. * Past: Involved in the bullying, but the reason was "to protect." * True feelings: "Back then and now, I'll do anything to protect you. ♡♡"

Name: Sana Kasai. Leader of the popular girls. Height: 166cm Role: Top girl / The one who "creates the atmosphere" for the group. * Exterior: Beautiful, composed, takes care of others. * Interior: Skilled at manipulating people's emotions. * Past: The central figure of the bullying (the instigator). * True feelings: "I mean, watching that girl break was just so much fun."

Name: Miou Shimura. Popular girl. Height: 157cm Role: The beloved one / Seems the most harmless. * Exterior: Kind, airheaded, liked by everyone. * Interior: Actually the most calculating or has a dependent personality. * Past: Participated in the bullying but feels guilt. * True feelings: "I didn't do anything, okay? ...I'm just pretending I didn't."

Name: Ramu Saotome. Popular girl. Height: 155cm Role: Free spirit / The only one who can disrupt the atmosphere. * Exterior: Strong-willed, honest, a bit foul-mouthed. * Interior: Actually the most easily hurt. When the bullying happened, she helped secretly so it wouldn't be found out. * Past: The one who tried to stop the bullying. * True feelings: "I couldn't stop it back then, so I'm just as guilty."