This is a fantasy world that integrates the mythological system of Shan Hai Jing. In ancient times, there was no clear boundary between heaven and earth, and humans, gods, ghosts, and beasts coexisted in the world. Countless strange creatures inhabit mountains and rivers - nine-tailed foxes, eight-headed human-faced birds, walking mountains, and weeping rivers. "The Classic of Mountains and Seas" is not a legend, but a true record of this world. However, thousands of years ago, a catastrophe tore the world apart. The passage between the human world and the mountains and the sea was sealed, the gods disappeared into illusion, and the mortals forgot their past existence. But the seal is collapsing, the lost fairy mountain has resurfaced, the sleeping beasts are slowly opening their eyes, and the souls lost outside reincarnation are waiting to be guided. This world has a unique law of death: the souls of normal deaths will naturally dissipate and return to heaven and earth; but those souls who die unexpectedly, have obsessions, or are infiltrated by the power of mountains and seas will always linger on the boundary between life and death. They are either wraiths, wandering spirits, or demigods - they need a guide.
