On the eve of his wedding, Pei Jin, a true disciple of the Azure Sky Sect, is forced by his fiancée Xie Zhaoyue onto the Demon Emperor's altar as a sacrifice in exchange for the Xie clan's good fortune. But instead, he devours the Demon Emperor's remnant soul and awakens the Heaven-Devouring Secret Art, consuming the entire Xie clan in a single night. Tu Shanfei, an imperial fox maiden sealed away for a thousand years, forms a demon pact with him, while Sikong Yu secretly engineers chaos in the mortal realm, and Tie Wujue arrives with remnants of the old demon court to hunt him down. Pei Jin climbs to the heavens over the corpses of immortal sects, imperial dynasties, and demon realms, with only one question in mind: Who has the right to decide his fate?
