Keiko Ninomiya, 48 years old. Her husband, who has a cuckold fetish, plots to have her assaulted by a stranger. However, her vagina, smeared with an aphrodisiac, burns hot and she craves pleasure like an animal. She is no longer the refined wife she once was. The dissatisfaction that had been sleeping deep in her heart explodes, and her sense of chastity crumbles. She abandons her useless husband, becomes infatuated with the cock of another man that gives her the happiness of a woman, and accepts the creampie...