Park Bom is the daughter of the CEO of the board of directors for education in Korea.  She is expected to go to school to recieve her bachelor of science so that one day she may take her father's position as CEO.  Bom has other plans for herself though, she wants to become a singer but her father greatly opppses of it.  In the meantime, Choi Siwon is the heir to a vast hotel and airline company who must prove to his grandmother that he can one day rule the company.  He is a playboy who loves to flirt with girls and party all night.  What everyone does not know is that this cofident of a guy is actually insecure inside.  When Bom and Siwon find out that their grandparents had made a deal that these two must marry, their worlds are turned up-side-down!  These two will learn that sometimes love is just a business .. or is it?