Yoseob is the perfect guy, very popular, very smart, and very friendly. But his life was turned upside down when his father reveals he has a half brother whose mother just died and had to live with them. Being the nice boy he is, he agreed to his father, only to find out his "half brother" Doojoon, is a total jerk. Having different personalities, they immediately dislike each other. But what if because of a kiss Doojoon stole, Yosoeb "accidentally" falls for hi