In order to investigate the old case of the death of her father and brother, the eldest daughter Ruan Yunqiao disguised herself as a man and sneaked into the six gates to work as a clerk. She acted with agility and observation, and repeatedly solved unsolved cases along the way. Pei Zheng, the military general in charge of the northwest, secretly discovered the suspicious points of the old case and took the opportunity to return to Beijing to report on his duties. He took the initiative to approach Ruan Yunqiao. The two of them worked together to explore dangerous martial arts areas, solved a series of mysteries, and finally uncovered the traitors hidden behind the court, and restored the innocence of Zhongliang.
