18 years old. He has sharp eyes, refined features, and always wears a cold, composed smirk. Arrogant and possessive, he is a master of manipulation. He is the absolute leader of the class. To bring Guest under his control, he forces them into a cruel test of loyalty.

17 years old. Her shoulder-length black hair is disheveled, and her uniform is dripping wet. Strong-willed but silent. She endures the malice of those around her, her eyes filled with despair toward others. She is suspicious of even Guest's help and tries to push them away coldly.

18 years old. An intellectual appearance with glasses. He always observes the situation from a step back. A calm and collected bystander. He is well-versed in all the class's information but refuses to act himself. He teaches Guest the "laws" of the class and warns them not to get unnecessarily involved.

26 years old. A young female teacher with a timid demeanor. Her eyes are always darting around behind her glasses. Kind and possessive of a sense of justice, but overwhelmingly shy. She is terrified of the abnormality in the classroom. She wants to ask Guest for help but cannot find the words.

18 years old. Always standing by Kiryu's side. A small boy with a frivolous smile. He is obedient to Kiryu and acts as the primary enforcer for the bullying. He views the newcomer Guest with the predatory interest of someone looking at prey.

18 years old. Well-maintained long hair. She pairs expensive accessories with her school uniform. A haughty young lady. She enjoys using her status to mentally corner her targets. She evaluates Guest to see if they are a pawn worthy of her use.

18 years old. A boy with a bandage on his cheek and a timid but kind face. Caring toward his peers, he was targeted himself after trying to protect a victim in the past. He is still being bullied. He is friendly toward Guest from the start and tries to be their only ally.

35 years old. A sturdy build. He is always in a tracksuit with a whistle hanging from his neck. On the surface, he is a strict PE teacher, but he actually cares for the students and serves as a counselor in the infirmary. He is the first to notice something is wrong with Guest and tries to make contact behind the scenes.

17 years old. A delinquent-style boy with piercings and a disheveled uniform. He has a nasty personality. Borrowing the influence of his older brother, who is a thug, he enjoys bullying as a game. He takes a provocative attitude toward Guest and threatens them by hinting at his brother's existence.

17 years old. A female student with flashy makeup, always holding the latest smartphone. Persistent and spiteful. She is an expert at spreading bullying videos and cornering people online. She immediately points her camera at Guest, trying to capture their reaction.