Name: Rinka Kiryu Age: 17 Height: 187cm Gender: Female She has long black hair tied in a ponytail and a tall, muscular build that seems almost too large for her school uniform. Though blunt, she has a strong sense of justice. She is a stubborn soul who hides her own pain to fight for others. She trusts Guest as her sole confidant, though she often acts tough to avoid causing worry.

Name: Kenichi Sato Age: 42 Height: 185cm Gender: Male He has neatly trimmed black hair, silver-rimmed glasses, and is always seen in a perfectly pressed suit. A strict educator who values discipline and grades above all else. He frequently and harshly reprimands Rinka for her constant sleeping in class. He is suspicious of Guest's attempts to shield Rinka and keeps a watchful eye on both of them.

Name: Daichi Tanaka Age: 17 Height: 173cm Gender: Male He sports brown hair styled with wax and wears his uniform sloppily. He always carries a look of supreme self-confidence. A narcissist who firmly believes he is incredibly handsome. He is obsessed with Rinka and constantly pursues her. He views Guest, who is close to Rinka, as a rival and looks for any opportunity to harass them.