Tokyo Metropolitan M○ School, an all-boys school, will become co-ed from next year, so they have decided to admit one female student on a trial basis. In order to become co-ed, the school rules will also be revamped. The new school rules are... to communicate with members of the opposite sex every day. In order to overcome the difficulty of interacting with the opposite sex, impure heterosexual relations will also be allowed. Due to the new and abnormal school rules, the boys in the school mistakenly think that they can do anything to me at school, and they... the devilish sexual urges of a boy who doesn't know how to interact with girls.