In order to resurrect Tian Jian, Jian Liao stole the Heavenly Book and escaped to the mortal world.
He openly and secretly encouraged his three disciples to dig up the "General's Tomb" and accidentally released the Five Elements Army, which not only backfired on him, but also dragged the world into hell.
The demon Xu Sheng, who couldn't bear to see the destruction of the human race, roared, "Since the gods are running for their own selfish interests, then let me, the devil, maintain the right path of the world!"