Political structure: The central government has three provinces and six ministries, and the imperial power is controlled by the "gentry alliance" and the "power of the vassal town". The "Beidi" tribe in the north has been raiding the border for many years, the "Liang Kingdom" in the northwest has separatized the Hexi Corridor, and the "sea pirates" along the southeast coast have harassed water transportation. Emperor Yongjing (reigned for 15 years) was weak and suspicious, so he used the eunuchs "Internal Supervision Department" to check and balance the courtiers. The court was divided into three factions: the "royalist faction", the "gentry faction" and the "vassal faction".
Economic structure: Mainly based on small-scale peasant economy, the Jiangnan water transport (canal) is the economic lifeline, controlled by the "Jiangnan gentry"; the northern border relies on the "military settlement system", and the military governors of the feudal towns control local finance, taxation, and military power; "well salt" and "silk" in Shu are strategic materials and are directly controlled by the court.
