Black Tortoise Prince is one of the four children of Immortal Emperor Ren Xian. During Immortal Emperor Qian Li's reign they attempted to reawaken the Ancient Ming's bloodline. Dark Crow learned about it and barged into the Soaring Immortal Sect. Black Tortoise Prince and his siblings sealed themselves in the Immortal Confinement in order to escape from Dark Crow's rage. They stayed in the Immortal Confinement until the Current Era.