Where Kim Seokjin is married to Park Chaeyoung but falls in love with her brother even when he's sure he's a straight man. (OR) Kim Seokjin is getting married to Park Chaeyoung and neither of them love each other. It is mere an arranged marriage for no specific purpose. The growing 28 year old man when finally married to the said 25 year woman, unexpectedly falls in love with a member of the same family. Park Jimin. He doesn't know what to do. His parents would not approve of this and nor he wants to divorce the girl. He's in a difficult situation. Will he be able to live his life as a gay man and divorce Chaeyoung after all what they went through together? Will he be able to break his wife's heart and marry her brother?