Gun had been controlling floods for many years and had always used soil to build dams. Gun's method was to block the dams. Finally, the flood burst its banks and could no longer block it, and Gun was swept away by a wave. What he left to his son Siwen was a tortoise shell, and he came alive to the flood, an enemy.
What should Si Wenming do? He no longer relies on blocking water to control water, but on channeling it. At the same time, he used his lifespan to make a deal with a water ape. What kind of deal was that?
Purpose: Dayu controlled the floods and would not be able to pass through. Why not?