A young Lee Yul (Jung Ji-hoon) falls in love with Yoo Yi-seo (Heo Jung-eum). His father rebels to get the throne and kills Yi-seo's father. Sixteen years later, Yul (Do Kyung-soo) loses his memory after being chased down. Yi-seo (Nam Ji-hyun), now Hong-shim, has to marry and Yul appears and calls himself "Won-deuk," her fiancé.