After Journey to the West, the order of the Three Realms collapsed, the power of gods and Buddhas weakened, and the remnants of the demon clan fled everywhere. Heaven is no longer the supreme ruler, but a broken organization after being overthrown by Sun Wukong, and may even be partially controlled by the demon clan, while the underworld has lost its original order after Sun Wukong burned the Book of Life and Death. The level of science and technology is low, relying mainly on magic and spiritual power. The power system is a competition between the demon clan, Buddhism, and the remaining heavenly forces. As the Three Realms returned to chaos, the original social structure, cultural background, customs and habits were all broken, replaced by a more chaotic and free state. Human civilization may also regress as a result, and some events or customs may even change that have never been mentioned in Journey to the West. New spheres of influence and different social forms will be formed in various places according to the strength of their power.
