Hao Ren was originally a young man who lived in a fourth-tier city and lived on the meager rent of an old house. When he went out to work, he accidentally became a "universe police officer." While he was still struggling to accommodate a group of abnormal creature tenants arranged by his superiors, his jurisdiction, the Dream Plane Universe, had already brewed a cosmic crisis. The mystery of the origin of abnormal creatures on Earth and the ruins of civilization in the Dream Plane Universe seem to be connected in some way. As Hao Ren's investigation deepened, the eldest son's world-destroying natural disaster, the goddess of creation fell, and one after another of the dusty and terrifying cases that had been buried for thousands of years bombarded his already useless brain circuit. Hao Ren gradually realized that he might not be able to slack off...

In the ancient times, there were giant spirits that lifted the sky, whose bodies were like stars, soaring across the universe. There are great honors of various races with different blood, destroying the void and re-creating the world, and there are ancient qi refiners who travel far across the galaxy to teach all beings. For some unknown reason, an era came to an end quietly, the world was isolated, and the ancient giants disappeared one by one. After many years, the young Nie Tian returned to the ancient times through a drop of blood.

During the An Lushan Rebellion of the Tang Dynasty, monsters are everywhere and the people were destitute in the Central Plains. Li Haobai started from the Bashu and wanted to go to the front line to make a meritorious deed. On the way he was swallowed by the monster. By coincidence, Li Haobai and the guardian of the dragon’s veins merged with each other to obtain the power of the black dragon. And he has since been involved in the struggle of various forces.