After a huge flood in the 15th year of Emperor Kangxi's reign, the young Emperor Kangxi set up an imperial examination to recruit talents for river management. The 24-year-old failed candidate Chen Huang stood out and was good at river management. The young Emperor Kangxi was not bound by rules and selected him. Chen Huang and Jin Fu, who was also committed to river management, worked together for half a century and experienced several major political storms during the reign of Emperor Kangxi. The young and outspoken Chen Huang died under the slander of treacherous officials. Before his death, he left behind a famous book on river management - "Essentials of River Defense". In the 51st year of Emperor Kangxi's reign, Taiwan was recovered, Junggar was pacified, the Yellow River was calm, and the river water became clear. Emperor Kangxi visited Yangzhou and saw the River God Temple. The statues of Jin Fu and Chen Huang are sculpted in the temple. The benevolent and ambitious people have left their love among the people.