Lin Wanqing, a merchant girl from a scholarly family in the Ming Dynasty, married as a young mistress. Her husband's family despised her because she was from a merchant family, and her elder sister-in-law also made things difficult for her at every turn. Lin Wanqing used her business acumen to help her husband's family solve the financial crisis (the family academy was short of money) and educated her naughty son, winning the love of her parents-in-law. She also resolved the conflict with her sister-in-law (helping her sister-in-law solve her daughter's marriage issue) and brought harmony to the family.