After the sudden death of Wu Yulan, a doctor of modern medicine, she transformed into a vicious old woman who spent her lean years molesting her daughter-in-law and selling her granddaughter. When she woke up, her third daughter-in-law had a difficult delivery. After saving the mother and child with her medical skills, she was determined to make up for her mistake. With her medical skills, system mall and spiritual spring, she improves her family situation, redeems her granddaughter, transforms her foolish and filial eldest son and selfish younger son, and unites her daughter-in-law to resolve provocations from evildoers. In the end, Wu Yulan led the family through the lean years, gained family harmony and a stable life, and completed the transformation from the evil mother-in-law to the backbone of the family.