In ancient times, the Yellow River flooded and caused disasters. Gun used "blocking" to control the water for nine years. The dam collapsed and he was exiled to Yushan by Emperor Shun, where he died unjustly. The young Yu inherited his father's legacy, but went in the opposite direction - replacing "blocking" with "draining" and taking charge of the important task of water control. Carrying the breath soil crystal left by his father, he got the help of the mythical beast Yinglong and the spirit turtle, subdued the Huai River monster monkey Wu Zhiqi, enlightened the loach spirit, and gathered the power of thousands of people to travel all over the nine states. Deep in the Yellow River, the black dragon blocked the water control with thousands of years of resentment. After Yu experienced life and death, he suddenly realized that "healing the water first cures the heart", put aside his personal hatred, and resolved the black dragon's resentment with forgiveness. Later, when he arrived at Dagong Mountain, he discovered that the ancient Suolongyuan imprisoned the red dragon. Faced with the deadlock of "killing the dragon, the earth's veins will collapse, releasing the dragon will cause floods", Yu realized the third way of "not killing, not imprisoning, only crossing", and used the blood of his heart to break the nine chains to pardon the real dragon. Finally, the Longmen was dug through, the Yique was split, and the entrance to the sea was widened using the trumpet method. It took thirteen years to complete, and the Yellow River returned to the sea. After the floods subsided, Yu resigned from his high position and refused to be given a noble title. He returned to his fields and worked hard at farming. He cast nine tripods to convey the connection between mountains and rivers. In his later years, Emperor Shun accepted the abdication and took charge of Kyushu, but he never entered his home three times. He used the method of "following the trend" to calm the world and pass it on to future generations, and finally achieved "the river is clear and the sea is peaceful, and Kyushu is eternally safe".
