Dong Min is an orphan brought up in an orphanage, where he had a very unhappy childhood. He has a very vague memory of his mother and does not know who his father was. Ji Eun, on the other hand, came from a loving and wealthy family. She grew up with Hyun Woo, a close family friend. Hyun Woo has loved Ji Eun since childhood, but the feeling is not mutual for Ji Eun only treats him as a very dear brother.