Maki Hojo, an adult video actress who became the most famous alumna, is invited to her alma mater as a lecturer. Hojo-senpai teaches the boys about the importance of sex in a gentle and careful manner. She uses her body to teach them sex education...She shows off her body and lets them observe the naughty parts of a woman. She uses a student's penis to teach him the mechanism of ejaculation, and finally helps him lose his virginity with her naughty, ripe vagina. This is a documentary of the three days in which Hojo passionately and naughtily taught the boys!