The action takes place in a prestigious girls' boarding school with a music background and a lot of ridiculous regulations of the students' lives, which was the ground for the criminal activity of the main "protagonist". His mother, Shuusaku Kato, has a deep-seated complex like Ikari Shinji from NGE, and has difficulty understanding people, especially the opposite sex, since he was in his teens. As he grew older, old resentments and complexes not finding a replacement, as well as a lack of success in life (both career and personal), lead to aggression towards teenage girls. Such people purposely seek jobs involving access to children and slip into the path of crime. He hung hidden cameras in all the toilets and recorded everything on videotapes. He gets cocky and starts seducing everyone. And with those who succumbed, he began to do all sorts of obscene things.