[One]

Jiyong lives his life as a playboy, so his mother wants him to get married with a girl who can make him better. So, she forces him to marry with Taeyeon, a good girl she finds for him. Taeyeon accepts to marry with a guy who she doesn't love to avoid the rumor that she commits adultery, her ex-boyfriend who is going to have a baby with another girl by accident. Jiyong and Taeyeon's marriage life is not smooth because Jiyong also has a girlfriend named Park Sooyeon and she wants to get him back.