Chen Guan, a young modern scholar, accidentally traveled to an imaginary ancient dynasty called "Dayin" that was similar to the late Warring States period and the Wei, Jin, Southern and Northern Dynasties. He was possessed by a poor scholar with the same name and surname who had just been unable to continue his studies due to family poverty. He was forced to go to the imperial capital Luojing to try his luck with the bamboo slips he drew on "Ten Strategies for Reforming the Country." The original owner had the ambition to help the world, but he died outside Luojing City due to hunger, cold and depression.
When Chen Guan woke up, he inherited the original owner's memory, identity, and the bamboo slips soaked with painstaking efforts. He also faced the cruelty of the world: the Yin Dynasty was peaceful on the surface, but in fact it was troubled internally and externally. The imperial power and the clans headed by the "Four Surnames and Seven Hopes" jointly rule the world and monopolize knowledge, land and official positions. After thousands of years of study, the theories of various schools of thought have long been out of touch with practice and have become a tool for the gentry to talk and show off, and to use the same party to defeat different people. The people at the bottom are miserable, refugees are gradually becoming a hidden danger, and the "Beidi" Khanate in the north is eyeing them.
With his insight into the laws of historical cycles and the knowledge system of modern political economics, sociology, and management, Chen Guan quickly realized that the original owner's reform plan based on idealism was vulnerable to the current power structure. He decided to lie dormant and use "unexpected strategies" as a stepping stone to first try to enter the periphery of power.
