Inspired by Arthur Schnitzler's novel, "La Ronde", many people are having sex in a variety of ways. A girl and her boyfriend go to a pool bar where she is served a free cocktail drink courtesy of a man who wants to date her. Another guy challenges her boyfriend to a game with the girlfriend being the prize. Three men are fighting over the young woman and a winner takes the girl. It ends up as four guys and the woman in a hotel room.

As soon as he bought a small house on a loan, his wife died in an accident. His work wasn't going well either. But this unsuccessful father raised his two daughters on his own. That's what he's most proud of. The older sister is an office worker who is having an affair with her boss. The younger sister is worried because she can't finish sex with her boyfriend. An incident occurs to each of these sisters, and it leads to an unexpected development..

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.

Three school girls confess their experiences...