Xiaobai finally found Xu Xian, the reincarnation of Axuan, after 500 years, the two met on the Broken Bridge. Xiaobai and sister hid in the streets and alleys, started a lively life in human world with him and his brother-in-law Li Gongfu.

When an attack shatters the fragile peace between the spirit world and humanity, Hei teams up with Luye, the last disciple of his Shifu Wuxian, to expose a conspiracy that threatens both realms - and the bond they've sworn to protect.