Kamata Atsuo

A teacher who teaches physical education at the school attended by the protagonist. His blatant attitude of being strict with boys and lenient with girls has earned him the disfavor of the male students.

In addition, he stares at them in a lewd manner and casually touches their bodies, engaging in sexual harassment-like behavior, which makes him intensely disliked by the female students as well.

However, he seems completely unconcerned about the students' reactions, and his sexual harassment-like behavior continues to escalate.