At Cheng Yan's advancement ceremony, her martial brother Cheng Tian forced her into dual cultivation. In despair, Cheng Yan self-destructed her inner core but was saved by her contracted magical beast, Chen. She later discovered that Cheng Tian's body had been taken over by the ancient magical beast, Sha. Determined to avenge herself, she began her quest for revenge. Cheng Yan refined an ancient artifact to restore her inner core but was poisoned in the process, leaving her with little time to live.
