During the Yonghe period of the Dai Viet Dynasty. Emperor Yonghe has been in power for twenty-three years. In his early years, he worked hard to govern, but in his later years, he became addicted to elixirs and the government gradually fell into disrepair. The throne has not yet been decided, and all the princes have their own thoughts. The four major forces in the DPRK are fighting openly and secretly: the clan group headed by Wei Guogong Yang Jun, the pragmatist group headed by Shen, the Prime Minister, the Qingliu Party headed by Yu Shi Zhongcheng Lu Bian, and the empress dowager in the palace who seems to have no interest in political affairs, but in fact has eyes and ears all over the government and the public.
Outside the court, there is also a secret intelligence organization - the "Star Observation Tower". On the surface, it is an astronomical observation agency, but in fact it collects information from all over the world and sells information among princes. No one knows who its owner is.
Intention: strategy