Han Li, an ordinary, poor boy from a mountain village, joins a small martial arts sect by chance. Despite his mediocre talent, he eventually cultivates himself into an immortal through hard work and careful planning.

Ten years after surviving the massacre of his clan, Shen Song, now a humble chef, is drawn back into his quest for justice when a festival fire uncovers hidden remains. Appointed as the emperor’s civilian investigator, he tackles a series of strange cases, uncovering conspiracies tied to his family’s tragic past.