In the 30th year of Daqing, the ever-victorious general Yan Lingyun aroused the emperor's fear. In order to eliminate this thorn in his side, Emperor Qing did not hesitate to cooperate with the Japanese pirates and killed Yan Lingyun in Ningcheng. Seventeen years later, the Japanese pirates' power gradually expanded, and they even joined forces with the Miao pirates to dominate the world. Yan Heng and Fang Yue pursued the plan to stop the Japanese pirates all the way to Shanyang County, where they met Liu Shuming and Jing Yu and became close friends. The four met and got to know each other, traveled together in the world, and witnessed many anecdotes. In the end, they joined forces to fight against Japanese pirates and protect the people.