So-yeon and Jun-seok goes on a trip to have a good time. Dong-wook tells Min-seo that he is going to return to his house now. Min-seo is also contemplating on returning home to her husband, but So-yeon comes home abruptly from her trip, because she’s pissed that Jun-seok was talking to other women on the phone all the time. Later, Sang-woo, Min-seo’s husband, and Jun-seok come to So-yeon’s house and each asks for forgiveness from their respective partners. Min-seo and So-yeon forgive them and Min-seo returns home with her husband. The next day, So-yeon asks Jun-seok to deliver to Min-seo some underwear that she left behind. Jun-seok obliges and when he comes to Min-seo’s place, they have sex. Meanwhile, Sang-woo goes to So-yeon’s place as he was tasked by Min-seo to get her bunch of underwear. So-yeon seduces him and they too, have sex.