Shen Zhiyi is the head of the wealthiest Shen family, and her maternal grandfather sent Xie Wenzhou to manage the accounts. For twelve years, Shen Zhiyi only cared about playing and never truly took over the family business. After marrying into the family as a resident son-in-law, Xu Wan forced Shen Zhiyi to sign a huge IOU and attempted to abolish Shen Zhiyi's renewal seal. On the first day of the first lunar month, Shen Zhiyi refused to stamp it in public, thirteen silver shops simultaneously canceled their seals, and Xie Wenzhou lost his power. Shen Zhiyi checked the accounts to slap Xu Wan in the face, the three of them signed together to stabilize the business, inspected shops to weed out shoddy goods with fine ones, resolved supply disruptions and fake banknote runs, saw through switching and arson, and exposed fake debts and forged documents.