A high school girl who lives with her newlywed sister and her husband. She masturbates every day, becoming frustrated by the extreme sex voices of her older sister and her husband. Her energetic sister is not satisfied with just her husband, and she also has an affair with a salesman. Her sister sees this and seduces her sister's husband without telling her sister...

A salary-man has particular needs that his wife just can’t get into. Then one day he spots a woman on the subway marked with a sign of his deepest desire… a rope burn on her wrist. Thus begins a sadomasochistic relationship.

After receiving information about a secret party for young women, a weekly magazine reporter, Furudate, heads to the venue and is overwhelmed by the dozen women dancing wildly. He requests an interview with the organizer, a female college student named Ryoko, who agrees to the interview in exchange for one condition.