The protagonist, Li Doujin, grew up in the red-light district. When he learns that his entire family has been slaughtered, he burns with rage and swears to avenge them. He follows his master and devotes himself to learning the arts. Once his training is complete, he sets out on the path of revenge, gradually uncovering the truth. His family vendetta becomes a national grudge, and revenge becomes a mission to defend the righteous. His fate becomes bound to the fate of the Great Qin Empire, and he performs a heroic deed that will resound through the ages.
