The demon god Gonggong angered Mount Buzhou, and the pillars of heaven collapsed, triggering chaos in the three realms. The Emperor of Heaven led the gods and Gonggong to a decisive battle on the top of Kunlun, and the fierce battle lasted for a hundred days. Gonggong was sealed "under the Nine Nethers", and the demons were driven into the demon world and isolated with the "Seal of Ten Thousand Realms". The gods also paid a heavy price. The Emperor of Heaven embodied the "law of heaven", and the gods retreated into the heaven and became isolated from the human world. A large number of mythical beasts, spiritual beasts, magic weapons, and formations remain in the human world. Some of the mythical beasts voluntarily stayed behind, sleeping in various nodes to guard the seal.
