The chaotic universe was originally divided into two realms: immortals and demons. After the war between immortals and demons, Pangu opened the sky to form three realms: heaven, earth, and humans. Heaven is the realm of gods, earth is the realm of demons and underworld, and the human realm is the mortal realm. In addition, there are the realm of cultivating immortals, the realm of magic, and the supernatural realm. Among them, the world of cultivation is the closest thing to the world of gods, the world of magic is where mortals practice, and the world of supernatural beings is mostly filled with lonely souls and ghosts. The six realms exist between heaven and earth, complementing and balancing each other, forming a boundless universe.