Ye Chu was a late Spatial Tempering stage member of Ye Family. As a member of that True Spirit Family, she possessed Wood Phoenix Blood. This peculiar bloodline helps her hide in the Wood Spirit Tribe for many years as a spy for the human race.
Mission in the Primordial World
When the war with foreign tribes was approaching, Ye Ying participated in a mission created by the Deep Heaven City to scout the movements of the Wood Spirit Tribe and gather information from spies(which includes Ye Chu). When Ye Ying and party fell for a trap laid out by Wood Spirit Tribe, Ye Chu helped them escape, which blew her cover. Later Ye Chu decides to return to the Ye Family. During this journey Ye Chu helps Ye Ying retrieve her Heavenly Phoenix Blood stolen by Long Dong and the Long Family elders.