The Yellow River, Yangtze River, and Lancang River all spring from a single source, and three clans called "Water Evils" (Ding, Jiang, Yi) dwell beside the water. What are these Water Evils? They glide through liquid freely and wield geomancy, feng shui, and treasure‑seeking expertise. Yi Sa, the sole survivor of the Yi clan, operates an "underwater bank" on the Lancang. While unearthing a "Golden Fortress," Yi Sa encounters and rescues Zong Hang. To uncover the mystery behind the incident and secure his own safety, Yi Sa trains Zong Hang into a skilled Water Evil. Together with Ding Yudie from the Ding clan, the trio ventures into the "Ancestral Golden Fortress." as they seek the hidden relics within its ancient halls today.
