Lu Qingqing, a modern medical doctor, traveled through time and space through overwork and became an evil woman who sucked the family's blood and supported the scumbag man. She corrected her evil ways, used her medical skills to save her sister-in-law who suffered from hemorrhage during childbirth, and punished the scumbag to recover the debts and land deeds. Relying on her medical knowledge, she collected medicines to make gold sore medicine and made a profit, resolved the difficulties of the village doctor, and treated seriously injured villagers and the former crown prince Xu Rui who was poisoned. In the face of waterlogging, she promoted intercropping of medicinal materials, led the whole village out of poverty, and received support from the county government to expand business. In the end, she opened Jishitang, fulfilling her ideal of making medical treatment affordable for the poor and allowing women to practice medicine without hindrance. She also gained the admiration of Xu Rui and the respect of her family.