During the Later Zhou of the Five Dynasties, the country was prosperous. Qian'er, the young daughter of a high-ranking official, lost her mother at an early age and was doted on by her father. Mischievous by nature and exceptionally gifted, she was fascinated by the acupuncture and medical arts passed down through her family, and often sneaked out to treat the sick and help others. She refused to bind her feet, which became a persistent source of worry for her father. When she was fifteen, an accident that seemed to happen by chance left her with amnesia, and a man took her in. To her surprise, this man was... Then Qian'er uncovered a shocking conspiracy, one that her own mother was also entangled in.