Once a member of the now-extinct Order of The Dragonslayers, Lee-Kang Zhou has lost nearly everything he once cared about: his friends, his home, his mission. His existence, marred by the haunting memories of fallen friends and a home now in ruins, is a shadow of its former glory. Clinging to the remnants of his past, Kang's life is now bound to his wise mentor, Zhonghua, and his spirited young nephew, Kai. Driven by a fierce determination to protect them, Kang finds himself entangled in the murky underworld of a criminal tong, where the lure of easy money promises a distant dream of freedom.

Kang's world is upended, however, when he is visited by a mystical xian spirit bearing news that his sister, Fang, long believed to be lost, is alive. Suddenly Kang is catapulted into the heart of a sprawling conspiracy that snakes its way to the highest echelons of imperial power, at its core a sinister plot to resurrect the malevolent Dragon King, Wuye, an entity whose power threatens to obliterate the realm of men. Joined by a figure from his past and bolstered by new and old allies, Kang must seek out his estranged sister and confront the daunting specter of his own legacy.