Dayan Sinks into Sand

The main dynasty of the mainland is the Dayong Dynasty, which lasted for 210 years and then declined from its peak to prosperity. The court suffered from serious shortcomings: aristocratic families monopolized government affairs, vassal towns maintained their own troops, the treasury was empty, officials were corrupt, and border troubles continued for years. Civil land annexation is serious and refugees are everywhere. It looks like the shell of a prosperous unified era, but in fact it is in turmoil and is on the eve of the end of the dynasty.