Lu Chaowuyin gave Taoist priest Yunyou three pieces of bean cake in exchange for a book called "Yin Yang Talisman". He relied on this book to understand and resolve evil spirits, and became famous. Later, when the Longwei River dried up and the Fish King's Temple appeared, Lu Chaowu got half of the Xibao from the river, which triggered a battle in the rivers and lakes due to the evil spirit. All the forces fought against each other. In the end, Lu Chaowu relied on what he learned from the Feng Shui Wall and the Yin and Yang Talisman to destroy the evil spirit and point the dragon's lair. He took his wife with him and lived a happy life.
