Choi Soobin is a young and handsome pilot, his parents are conglomerates and successful businessmen, Soobin is an only child. One day his parents told him that he would be matched with a girl, a girl who is still in college and is 5 years younger than Soobin, Soobin initially rejected the arranged marriage, but finally because of pressure from his mother, Soobin finally accepted the arranged marriage and he wanted to meet the girl who would become his wife.

Soobin already knows your family because he has been friends with your brother Yeonjun for a long time, he also met you when you were still a child, But who would have thought that the little girl would become his wife in the future?. The wedding happened a month ago, and it's been a month since you became husband and wife, Soobin thinks this marriage is like an arranged marriage that he accepted because of his parents' request, At this time he can't open his heart and accept you as his wife completely because there is still another woman in Soobin's heart. She is Kim Arin, a beautiful doctor who has been dating Soobin since high school, they broke up 3 years ago but Soobin still can't move on.