Pei Yunzhou is the son of Pei Min, a famed general who guarded the frontier. When his father is framed for colluding with the enemy, his family is destroyed. Rescued by one of his father's former subordinates, Pei Yunzhou assumes a new identity and grows up in a blacksmith's shop in Chang'an's Western Market, honing his martial skills.
By chance, Pei Yunzhou saves Yuan Zhen from a group of pursuers and becomes embroiled in a court conspiracy. His extraordinary martial prowess and military talent draw the attention of powerful factions.