The protagonist Qian Xuan, a doctor of modern history and an expert in urban planning, accidentally traveled through time during an academic investigation and became Qian Xuan, the son of Qian Yuanguan, the grandson of Qian Liu, the leader of the Wuyue Kingdom. In 919 AD, at that time, the Wu Yue Kingdom had just defeated Yang Wu's navy in the Battle of Langshan River, and its foundation had been established. However, internal and external troubles coexisted.
Originally, the historical destiny of the Qian family's Wuyue Kingdom was to "protect the country and the people, and do good to China", and eventually returned to the Song Dynasty. However, the time traveler Qian Xuan came with modern historical knowledge and knew that if the separatist regime in the south could be the first to integrate, it might not be unable to compete with the north. On the basis of maintaining the economic prosperity of Wuyue Kingdom, he must gradually shift from "conservative" to "enterprising" to complete the great cause of unification. End the chaos in China ahead of schedule and end that Chinese nightmare that even historians don't want to mention. This is an imaginary history that overlaps with the original history but also contains many inconsistent historical time and character routes.
It's pretty good. It has flaws, but it's okay.