The heaven and earth first opened, and the three realms were first established. The three realms of immortals, demons, and humans coexisted, with mutual checks and balances and constant disputes. The fairy world, with the heaven as its core, formulates the rules of heaven and manages the order of the three realms; the demon world is distributed in mountains, forests and caves everywhere, and often conflicts with the fairy world; the human world struggles to survive between the two, relying on faith and the protection or intrusion of fairy demons to develop. Zhu Gangxi was originally an ordinary pig demon in the demon world. He was reborn by chance and embarked on the road to become an immortal.
