have you ever had a childhood sweetheart?? Or that particular someone whom your parents match you to always? They say young love is the purest of all love. It’s a story about a seven year old orphaned boy who found himself attracted to a fellow orphan. Jiyong uttered a promise to a cute little girl that he’ll search, wait and marry her when they became adults when she was adopted, Ji was serious about his promise but don’t have any idea where could he find the little girl who made his heart beat so fast. After 18 years, Jiyong was rich, handsome and very popular with girls. He was a certified playboy but knows that when he finally find the girl which he uttered his promise he’s really going to marry her. One day a sudden crossed of paths was made and Jiyong find a girl who looked like the little girl he’s with in an orphanage but convinced himself that it’s imposible because this girl is a nerdy and unsophisticated girl and he can’t accept the fact that he’s going to love that kind of girl. But... can he help it?