A plan pointing to a dynasty, a power struggle between old and new parties, shipwrecks in the south of the Yangtze River, corpse poison in the Miao territory, Dali trade routes, the war in Xixia, the commander of the Imperial City Division uncovering the mystery of the Song Dynasty, the rivers and lakes are sinister, and the identity of an ordinary medical woman is... The Liao Kingdom invaded the Central Plains for the purpose of... The person in power turned out to be...