In 1270, the fourteen-year-old Lu Heng was transformed into the son of a corrupt official in Yongjia City in the Southern Song Dynasty and was despised by everyone. As the war rages from the north to the south, salt roads, ports, granaries, marriage contracts and human lives are entangled in a web. He has no system, no troops, and all he can use is an empty account, a few dangerous roads, and a group of people with their own calculations. The motherland that cannot be defended will eventually be destroyed. He can only save a group of people in troubled times, defend a port, and establish rules that allow ordinary people to survive.
