The boss of the demon world is said to be Nuwa, because Nuwa is a human-faced snake body, but Nuwa was also an ancient god clan at the beginning, the demon world is more chaotic, they are not bound by any constraints, the leader Ofe is the embodiment of Xuan you, and the underworld is the realm managed by The King of Yama.
Those who like to read Xian Xia novels know that in the past, the universe was divided into six realms, the most common of which were the Immortal Realm, the Divine Realm, and the Human Realm, which were controlled by the Jade Emperor we are familiar with. There are three other realms, namely the Demon Realm, the Underworld and the Demon Realm, and at the beginning of the legend, the Divine Realm was the most powerful, they were in charge of everything in the heavens and the earth, and at that time the Heavenly Emperor was also the most powerful ruler.
The immortals are immortal, and they do not have seven passions and six desires, over time, the life of the immortals is also very boring, and later many immortals have left, and there have been various battles in the heavenly court, so later the heavenly emperor passed the position to the Jade Emperor. And the Demon Clan is a relatively chaotic place, in the Demon Clan are the weak and the strong, the powerful demons will increase their cultivation by devouring the small demons, and the Demon Clan's combat power is very strong, they can fight with the gods. Among them, the Demon Lord is the most powerful, the embodiment of Xuan You, and the leader of the Demon Realm.
In addition to the Demon Realm, whether it is a person or a fairy or a demon who dies, he will go to the Underworld to reincarnate, and the leader of the Underworld is the Yama King we know as well. Among these six realms, the human beings in the human world are the weakest, the ruler of human beings is the emperor, although human beings are the smallest in the six realms, but human beings can experience the seven passions and six desires, and there is a cycle of life and death, which is something that neither the demon world nor the immortal world can experience.