Guo Yixin, an actor, plays the lover of a drug dealer's big head in the play. Later, after the big head died, he was elected by his brother as a gang leader. He secretly arranged for Fan Li to approach Qin Changling, and told Qin and Ma that Qin Changling had designed to let him hunt down Ma Hongwu. Liu Lin took advantage of Ma Hongwu's escape to take over Ma Hongwu's territory and strengthen his power. He tried to control the drug supply and marketing market in five northwest provinces, but he was already listed as a wanted criminal by the Royal Bureau. Finally, he was seen by Qin when dealing with the dying Ma Hongwu.