Fukama-sensei discovers a mysterious notebook that allows him to compel students to perform sexual acts under the guise of "guidance." He targets the popular and virtuous Megumi Fujimiya, hypnotizing her into believing that sexual intercourse with him is a mandatory requirement for her school credits. After claiming her virginity, Fukama-sensei uses the notebook's power to manipulate Megumi's desires and orchestrate a deceptive alibi involving her boyfriend to hide the teacher's influence.