Thousands of years ago, the 5 Kings guarded the land of the Xia Dynasty with magic artifacts. Later, the leader of the Dragon Clan, Zu Long, helped humanity by establishing the Yun Chui Empire. The empire overlooks the calm ocean where Xi and the Black Water Clan have maintained it for 1,000 years in peace. Now, waves are surging from below and chaos will rise once again.

Gao Yunlong (阮颂扬饰), a special agent of the Shenzhou Bureau, was ordered to enter the Ming Dynasty. He was looking for the colleague Cao Xiaomei (Chen Jiaxuan) who had already gone before, and traced the conspiracy of time and space disruption. At the same time, he helped to fall into the dispute between Donglin Academy and Dongchang. The members of the Donglin Academy were murdered one after another. However, there was no clue to the search of the murderer. The eldest brother of the college, Ye Jingqing (Song Tingyi), finally confessed to the imperial court, letting the emperor go to the police to confuse the people and directly point to the East Factory. At this point, a vast sensation ended in justice, and Gao Yunlong stayed in the Ming Dynasty to continue his career.

The last days of the Qing Dynasty. The capital officials are confident that the reign can collapse at any moment. After a series of mysterious deaths of court ministers, the Emperor decides to conduct a sacred ritual of cleansing the heavens. At the same time, he instructs the only miraculously surviving minister Fucha Yuheng to find the killer and punish him. Fucha turns for help to his friend - Crazy So. King of Beggars .

A mysterious man arrives at the offices of an FBI agent and recounts his childhood: how his religious fanatic father received visions telling him to kill people who were in fact "demons."