An innocent and virginal young woman named Ai is carried away by her curiosity towards the underground world of sadomasochists by a couple of exhibitionists who visit the club where she and her friends are passing through. Fascinated, Ai follows the two and finds herself drawn into a world of bondage and rough sex. Feeling transformed and liberated by the experience, Ai embraces this lifestyle and enters into a passionate relationship with an equally uninhibited young man to whom she feels attracted.