A mythical world where demons, Buddhas, gods and ghosts coexist. Humans and demons can transcend tribulations through cultivation and become immortals and Buddhas. The gods destroy themselves and become humans. They die after six lives, and their souls are scattered and do not enter reincarnation. When a person dies, he becomes a ghost, crosses the River of Forgetfulness, drinks Meng Po soup, and is reincarnated.