Fast-sword Hong Gil-dong) is a 2008 South Korean television series starring Kang Ji-hwan in the title role, Sung Yu-ri, Jang Keun-suk and Kim Ri-na and is written by the Hong sisters.
The drama is loosely based on Hong Gil-dong, a fictional book about a Robin Hood-like character during Korea's Joseon Dynasty, but with modern influences and comedic tones.
He seems cold and calculating as he also has a dark past in which his older brother, the current king of Joseon, tried to murder him.
As the question of rightful succession comes into play, Gil-dong and Yi-nok are forced to take sides, all the while having to deal with their own personal problems: their love, Gil-dong with his father issues, and Yi-nok with her murdered parents and their revenge.
Source: TNS Media Korea In Thailand, the drama aired dubbed into Thai under the title ฮง กิลดอง จอมโจร โดนใจ (Hong Gil-dong Jomjone Donejai; literally Hong Gil-dong The Thief) on the Channel 7 from April 4, 2009 to June 13, 2009 on Saturdays and Sundays at 09:15.