Hye-ran, who has been living alone, has to live with Sang-woo, the nephew of her stepfather who her mother remarried. As time went, Hye-ran begins to feel lust whenever she sees Sang-woo. Even without blood relations, Hye-ran is confused about her feelings for Sang-woo, and she is also certain that her boyfriend, Gi-joon, is involved with another woman. Meanwhile, Sang-woo who had sex with Ji-eun, confessed to her that he was thinking of Hye-ran when they were in the middle of doing it, and then announced their breakup. Sang-woo went home late that night. Upon arriving the house, Sang-woo found Hye-ran in her underwear, pretending to sleep. Sang-woo eventually went in and touched Hye-ran. After confirming how much he wants her, she let Sang-woo take over her body.

Joa, who lived alone with her new father Hail, I'm worried about Dojin, the nephew of Tsunami, who has been living with me for a while now. This is because Do-jin seems to have noticed that the tsunami and his own relationship are related. And for some reason, young Do-jin is increasingly attracted to him. Then one day, Joa didn't know that the tsunami was having an affair with another woman. I ask for sex, but the tsunami sometimes goes unconscious during sex. The tsunami's stamina could not stand. Joo-a waited impatiently in front of the emergency room from Do-jin. Fortunately, I am relieved to hear that there is no harm to life. That night Do-jin asks Joo about his relationship with the tsunami. Joa thinks that the tsunami and her internal relationship is something she can't hide anymore. Tell Dojin all the facts. And Dojin also asked if he was a man who wasn't mixed with a drop of blood. Seduce and engage in sex.​