Lu Tong studied medicine in the mountains for seven years. Upon returning home, she finds everything changed. Her elder sister was murdered, her brother is wrongly imprisoned, her father died on his way to the capital to appeal for justice, and her mother burned to death after going insane. Lu Tong packs her medical bag and heads to the capital for revenge. She will get justice for her family, even if she has to become the judge herself. Meanwhile, in the capital, a series of incidents plague the aristocratic families. Pei Yunying, the commander of the Dianqiansi, secretly investigates, suspecting a female doctor from Renxin Medical Clinic. But before he finds evidence, she attacks him first. This is a story of a fierce female doctor and a scheming commander.