This work is generated with AI assistance, telling the story of Cai Jing, a youth with modern thinking, following a delegation south to inspect the southern waterways. He encounters multiple obstructions from the Prime Minister's faction, experiences the pontoon bridge storm and military pay embezzlement maze, collects human and physical evidence, wisely breaks the framing conspiracy of Second Master Ma, the gentry of Baihe Ferry, and clears the grievance of Old Master Zhou of Qingshi Ferry. Afterward, he rushes to Yunze, the heavy disaster area of floods, discerns the man-made disaster behind the natural disaster, proposes the water governance strategy that blocking is inferior to dredging, and guards the people along the river amidst heavy crises.