Seo Yi-Kyung (Lee Yo-Won) ambitiously wants to build her own empire. She is calm and also passionate. She doesn't believe greed is a sin. Park Gun-Woo (Jin Goo) possesses good looks and comes from a wealthy family that runs a large company. Seo Yi-Kyung is his first love and he is still in love with her. Lee Se-Jin (Uee) comes from a poor background. She desperately wants to escape from her situation.