A contract was made on a snowy night, and the craftsman girl Shen Zhi married into the Marquis of Changning. She started from the "foreign accounting office": closing the warehouse and checking the scale, dividing the accounts into three accounts, and establishing a dividend system. This eliminated the internal affairs moth and also brought out the hidden connections between government and businessmen and military supplies. Using accounts as soldiers and rules as blades, she worked side by side with the prince Gu Xingzhi to break the situation. From the temptation of marrying first and falling in love to cherishing each other, they jointly completed the restructuring of the Marquis Mansion, the workshop alliance and the establishment of a women's school. What she wants is not to be the head of the family, but to live up to the scale and live up to the name.