Traveling Through the Realm of Yin and Yang

The protagonist is one of the few strange people in the world who can travel between the Yin and Yang worlds out of his body. One day when I entered the underworld, I met my friend, and then I realized how vast and magical the underworld was. It turns out that many humans and habitable planets once appeared in this universe. Their souls exist in the form of energy waves after death. They continue to exist on their own planet, but communication with each other is faster and more convenient. In the underworld, there are three levels: gods, ordinary people, and demons. The gods rely on humans and demons to provide energy waves. If the energy waves are exhausted, they will completely disappear from any world. Since the demons are the lowest level, they provide the most energy waves. Therefore, they need to work hard to earn more energy waves to support the gods, and they also need to be oppressed by them. Finally, the demons began to unite with the humans to resist. In the process of resistance, the protagonist discovers a shocking secret. It turns out that all of this was premeditated. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.