In the winter when he was sixteen, Chi Wan's father died.
The head of the Chi family in Hedong was in charge of three salt roads, seven copper mines, and seventeen banks in the Dayan Dynasty. He fell from his horse and did not wake up for three days.
All her father left her was an iron box. There is a letter, a list, and several pages of accounts in the box. The letter asked her to find someone. There were seven names on the list, and my father checked them, but he didn't have time to finish. The numbers on the bottom account did not match up, so the salt from the east line was transferred to the south line, where it was then shipped northward and finally disappeared in Weibei Town.
Chi Wan locked the iron box into the cabinet and walked out from where his father stopped. She walked through the blacksmith shop in the south of the city, the oil shop by the canal, the back door of the transshipment department, and the shore of the southern dock. She walked every road her father walked and met everyone his father met. The fragments in each person's hands can be pieced together into a map of the flow of the salt channel.
After she checked the whereabouts of the salt, she didn't stop. She took the picture to the Department of Household Affairs, and starting from verifying the salt quotation approval document, she filled in the loopholes one by one and sealed the gaps one by one.
Conception:-