Childhood friends Baek Dong Soo and Yeo Woon are both prodigies in combat. But while Baek Dong Soo became the top swordsman in the land, Yeo Woon would go on to serve a group of clandestine assassins whose aim is to overthrow the throne.

A magician meets an eccentric girl and offers her to work together in his magic show. It is only until a year later that he starts to know her personally and develops a feeling towards her despite her own problems.