At the age of 12, Eunjung, who grew up in a wealthy family, learned that she and another girl, Jiyeon, who'd been brought up by a poor family, had actually been switched at birth. Their lives are then turned upside down when both families agree to switch the girls back to their rightful identities. Eunjung and her former "brother" Kris had always been very close. Will they recgonize each other after 13 years of