Looking for a Metaphysics Novel 找一本玄学的小说

I read it last year but forgot the title. The female protagonist belonged to a Daoist sect and was reborn in a young woman's body. She was engaged to the male protagonist, who seemed to be the reincarnation of the Lord Tongtian. Nezha and some other characters also appeared, though I cannot remember who else. The story also involved the Investiture of the Gods.