From the Start, I'm a Demon Venerable: Is It Normal for a Goddess to Share Half My Body?

P.S. This story features one soul in two bodies, and the male and female leads share the same consciousness. It is also a selfcest story, so please don't read it if that's not your thing. Ten thousand years have passed in vain. There is no Supreme left in the world. The Profound Realm has five domains, and the highest level cultivators can reach is the Celestial Realm. The peerless Demon Lord Qi Wu You used the power of the Dao artifact, the Gate of Reincarnation, to send half of his soul into the cycle of reincarnation, all to unravel the mystery of life and death. Tens of thousands of years passed. When he awoke again, the other half of him, which had reincarnated countless times, had become a goddess of the Daoist sect. As the saying goes: A stranger seeks the Dao and enters reincarnation, his demonic might subduing the Profound Realm. In the blink of an eye, sixty thousand years have passed, and the goddess of the Eastern Sea Immortal Palace returns. She refines the soul to mend the heavens and unravel the mystery, erecting a monument in the Heavenly Secrets Pavilion. After crossing paths with countless demons and monsters, the road ahead appears. He schemes for immortality and never regrets it.