In 1994, the Kingdom of Corea encounters severe upheaval. The King (Kwon Yool) is murdered by his brother Lee Lim (Lee Jung-Jin) and the King's son Lee Gon (Jeong Hyun-Jun) is stabbed in the neck, but he survives. The murderous Lee Lim seeks to possess the Manpasikjeok, which is legendary flute that holds supernatural powers. After a mysterious figure appears with a gun, Lee Lim slips away with only half of the now broken flute. The young Lee Gon holds onto a police badge he grabbed from the mysterious figure. The next day, Lee Goon is appointed the next ruler of the Kingdom of Corea.