The general originally wanted to send his daughter Gu Wan to the palace through the draft, but he used his holy favor to check the power of the prime minister, so he specifically asked his daughter to learn how to dance. Unexpectedly, her mother misunderstood that she was learning martial arts and taught Gu Wan to become a powerful martial arts master in three years. At the talent show, Gu Wan shocked the audience by holding up a stone lion with one hand, and was appointed by the emperor as a sixth-grade sword-wielding guard. After entering the palace, she relied on her martial arts to resolve several difficulties and performed extraordinary feats at the risk of saving her life. However, she also stepped into the dangerous chess game of the court's intrigues.