Kwon is a talented fighter able to outclass martial arts masters, but as a slave his talents are wasted in winning fighting bets for his master and he is often forced to hide his true talent. He ends up in a fight hosted by the gang leader Muhyung where his skills are finally noticed.
Then an old friend shows up to release him and restore him to his position as the son of the strongest man in Korea, but Kwon is not willing to return until he can attract the attention of his real enemy and enact vengeance. He must carefully balance the obligation to his friends with his personal mission.