Yoon-jeong and Hyeon-goo are about to get married. The two live with Hyeon-goo's father, Seok-jin, until they find a house for their newlyweds. While Seok-jin is having a good time with her girlfriend Joo-ra and living her daily life, seeing Yoon-jeong gives him a different feeling, and Joo-ra and Hyeon-goo are having an affair without Seok-jin and Yoon-jeong secretly. Then one day... while drinking, Seok-jin hears about Yoon-jeong's family situation, and he tells her that he can help.