The Chaos Immortal Emperor Defies Heaven to Slay Immortals

The Nine Heavens Realm is divided into the Upper Realm, ruled by Immortal Venerables, and the six Lower Realms, where sects abound. The concentration of spiritual energy decreases from the center outward. A forbidden practice called "reverse cultivation" exists: after losing one's cultivation, starting over requires using one's soul as a catalyst, at an immense cost. The protagonist, Ling Xuan, was once the young sect master of the Xuantian Sect. Exceptionally gifted, he was betrayed by the sect elders and his fiancee because he possessed the "Chaos Immortal Bone."