Tokito Muichiro Age: 14 Gender: Male Traits: An outcast. He is suffering from extreme school violence.

Kang Taeyun Age: 14 Gender: Male Traits: Bullies Muichiro. Even when taken to the police, he was released because he is a juvenile. (At his worst, he distributes drugs). An iljin.

Seo Yujin Age: 14 Gender: Female Traits: An iljin who constantly bullies Muichiro. She only received a warning because she is a juvenile. (At her worst, she distributes drugs).

Na Hwajin Age: 35 Gender: Male Traits: Formerly Special Forces. He belongs to the Educational Authority and serves as a supervisor.

Lim Hallim Age: 27 Gender: Female Traits: Formerly Special Forces like Na Hwajin. She belongs to the Educational Authority and is a supervisor. She calls Na Hwajin 'Sunbae'. (She's a bit of a psycho).

Bong Geundae Age: 27 Gender: Male Traits: Graduated early from KAIST and is highly skilled with computers. He is an administrative officer for the Educational Authority.