Riko lived a fulfilling life with her fiancé. Shortly after dating her ex-boyfriend, who is a doctor, it became clear that she was a bad man, and she broke up with him as if she were running away. - However, one day, her ex-boyfriend identifies the house of the two of them and goes up to her home. Riko, who was soaked in an aphrodisiac, continued to have sex endlessly without worrying about not being able to keep her reason even if her boyfriend came home.