Natsu, an honor student who attends a school in Tokyo, is a serious student with a strong sense of justice and is a member of the dance club. - One day, Natsu, who came to practice alone on the rooftop, sees Suzuki, a delinquent student, smoking and warns him. - Then, a teacher, Hito, also appears and chides Natsu, but in reality, Hito is also a bad teacher... - During the summer vacation, an honor student with short black hair is transformed into a lewd woman by the sweaty creampies of vulgar men who will inevitably impregnate her.