The Dayao Dynasty was peaceful on the surface, but secretly controlled the world with the "Guixu List". The young master of Qiyun Villa, Bai Che (also known as Wugou), destroyed his family overnight and used himself as a poisonous body to hide in Zheyue Cave for ten years, transforming into the "Poisonous Young Master". Shen Xun (also known as Guguang), who once took charge of the imperial eagle dog "Xuanjing Division", defected because he released Bai Che privately. He was infected by the "heart-corrupting poison" and became a wanderer in the world.
The Gui Xu list reappeared, and the two were forced to join forces: one sought revenge, and the other sought to solve the poison. They found out that the murder at the villa and the official list were all caused by a conspiracy between the imperial court, Jixueling, and Xuanjing Division; they also discovered that each other is the only symbiote in the world that can "exchange poison for life."
At the Luoyang Flower Banquet, they burned the list in public and cut off the chains of the world. Bai Che is pierced by thousands of arrows, and the poison cures his blindness; Shen Xun has abandoned his martial arts, and his hair is as white as snow.
Three years later, in a small wine shop in a water town in the south of the Yangtze River, a blind luthier and a white-haired shopkeeper sat across from each other and played the qin - the rivers and lakes were far away, the mountains and rivers were silent, only the two of them were side by side.