According to Confucius, "an educated woman is a worthless woman", but Tan Yunxian is being raised by her grandparents to be of use. Her grandmother is one of only a handful of female doctors in China, and she teaches Yunxian the pillars of Chinese medicine. But when Yunxian is sent into an arranged marriage, her mother-in-law wants her to act like a proper wife ... Inspired by the true story of a woman physician from 15th-century China.