Daraku

Kiriko, a strong-willed martial arts expert, is bound and gagged in a dark, empty school building, wearing only her underwear. Three masked men confront her, boasting about their past experiences with other female teachers. They intend to push her to the brink of ecstasy through their perverse assault.

Despite her precarious situation, Kiriko remains defiant. Two of the men already lie wounded in the nurse's room, and she threatens to turn them over to the police. However, her insults only excite her captors further. They propose a challenge: if she can withstand their intimate touch for ten minutes without becoming aroused, she will be free. As they begin their assault, Kiriko's resolve is tested against a rising wave of sexual pleasure, threatening to overwhelm her mind and reason.