This is an ecchi school comedy about a perverted high school boy and a gorgeous female teacher. Katou Kazutomo, a boy who thinks of nothing but sex, drinks some mysterious juice that he found in the laboratory of the beautiful and intelligent student teacher, Hara Machi. Afterwards, he finds himself transformed into a woman who looks exactly like Ms. Hara! After the ecstacy of seeing "that place," which is exactly like Ms. Hara's, Kazutomo returns to normal, however.