There are four great martial arts masters in Sizhou City. Hongmen is located in the east of the city. He was founded with a fierce and unparalleled "mountain-breaking power". The head of the family is Hong Zhenyue. The Ze family is located in the west city. , A "nine-turn rejuvenation technique" can resurrect human flesh and bones. Although the owner Shui Yinshuang is a woman, the powerful people from all over the world dare not be disrespectful; Simen in the north of the city is the most mysterious, and the secrets of the mechanism are unpredictable. The owner Si Tianji has an "anti-fate chart" and is rumored to be able to tell fortunes and avoid death. The four major families had grievances and grudges against each other. In the end, in order to prevent the Yellow River from bursting its banks, the four major families put aside their grievances and joined hands to use the power of the rivers and lakes to try to save millions of lives. However, only a few peerless martial arts were preserved to be passed down to later generations. The heads of the four major families were with the city when the Yellow River seized the Huai River and entered the sea. In the process of fighting the flood, the four major families fell to the bottom of Hongze Lake together with Sizhou City.
Mission: In the face of crisis, stay with the city