The ancient dynasty "Dayin" is imaginary, and it appears to be prosperous but actually has fierce party disputes, external border troubles, and hidden dangers of civil unrest.
The four-party game between imperial power, powerful families, poor families, and foreign enemies, the conflict between the old and new systems, and the social crisis caused by land annexation.
Behind an imperial examination fraud case that affected both the government and the opposition, there was a shocking secret that shook the country.
