The Nine Heavens Domain is divided into the Upper Domain (where the Immortal Lord is in charge) and the Lower Six Domains (where there are many sects). The concentration of spiritual energy decreases from the center outward, and there is a taboo on "reverse cultivation" (rebuilding after losing the cultivation level requires the soul as a guide, which is very costly). The protagonist Ling Xuan, the former young master of the Xuantian Sect, is extremely talented. He was betrayed by the elders of the sect and his fiancée because he was pregnant with the "Chaos Immortal Bone".
