A cultivator of yet unknown origins, Li Qiye had a run-in with him when he was weaker as the Dark Crow, he was held captive and forced to share secrets. When Li Qiye visits the Drystone Courtyard in the Current Era, Insane Ancestor is trapped beneath an abyss.
When Li Qiye leaves the Tenth World for the Three Immortal Worlds, it is revealed that Insane Ancestor has founded a sect there but was not too attached to it. Li Qiye uses the memories shared between them and poses as an ancestor there.
He left his memory to Li Qiye about what had happened with world and dissapeared in light