Megumi Fujimiya is attracting attention as an onapet idol from school men. She is a childhood friend and a pure school girl in the middle of youth who has just become a lover with baseball club ace Takashi Katayama. There appears a life guidance teacher who has a mysterious Seikatsu guidance notebook that can change the perception of the other party. Fujimiya ... Did you forget that students who have a lover must take sexual activity guidance as a compulsory subject? I'm sorry ... I forgot such an important thing !! Megumi, who was shown her notebook and changed her cognition, receives repairs in the health room for sexual activity guidance in which gene juice is poured into the uterus without a contraceptive that is not as deep as it is said. It will be--.