Hisashi and Sumire go to meet Hisashi's father to get their marriage approved. However, Hisashi's father is strict and thinks he will not approve of Sumire's job as an underwear model, so he lies and says he works for a top company. The two are allowed to get married, but one day his father sees a photo of them in underwear taken at work. Sumire's body is so erotic that it destroys even the strict father's reason. The perverted father uses an aphrodisiac to rape Sumire.