A boys' school that conducts health and physical education classes using female teachers as samples. A new female teacher who has a sense of mission and has been assigned without knowing it. He was persuaded by his senior teacher to "improve the quality of the lessons," and while he was confused, he took off his clothes and underwear and stripped his fresh body in his twenties naked. Bare pink nipples. Thin pubic hair. Sex education is given to boys who have sexual desire using a dazzling female body ... The back of the vagina is also observed, and love juice slowly flows out ...