Mu Chenxue was weak since she was a child. At the age of three, her father sent her to learn martial arts from her master in the mountains. In order to strengthen her body, Mu Chenxue returned home twenty years later and found that her entire family had been killed. She buried her parents and prepared to go back to the mountain to find her master. She rescued Jing Yi, the son of General Jing, who was unconscious on the path. The third prince killed Mu Chenxue's entire family in order to eliminate the evidence of his treason and treason in the hands of Mu Chenxue's parents. There is another Mu Chenxue in the Mu family, thinking that the evidence is in Mu Chenxue's hands. The third prince is planning to kill Mu Chenxue in order to eliminate the root cause and prevent future troubles. In order to save Mu Chenxue and the princess, Jing Yi fakes a marriage and survives because Mu Chenxue is the prince-in-law's savior. In the end, Mu Chenxue finds the murderer and avenges the family. The princess also waits for her prince to come back. Jing Yi and Mu Chenxue walk together.
