Chen Mo, a modern logistics specialist, was reborn four years ago in Zhenguan. He was expelled from his family at the beginning and lived in the west city of Chang'an. He is penniless and only has a brain that can settle accounts. Starting from the accounting room of the grain store, using table methods, statistics, and supply chain thinking, he solved gangsters, firefighting, military procurement, calendar errors, skyrocketing grain prices, and water transportation corruption step by step... When Li Shimin asked "Who are you?" Chang'an City could not do without this poor boy.
