Natsu, a model student attending a school in Tokyo, is a serious student with a strong sense of justice and belongs to the dance club. One day, Natsu, who came to practice alone on the rooftop, witnesses "Suzuki," a delinquent student, smoking and warns him. Then, the teacher "Hidenori" also appears and admonishes "Natsu," but in fact, "Hidenori" is also a delinquent teacher... During summer vacation, the black-haired, short-haired model student is magically transformed into a super-lewd woman by a creampie gangbang by vulgar men, which is sure to result in pregnancy.