The Qing Shan family has been serving in the military for generations, with the responsibility of safeguarding the Ruyi secret code. However, during a turbulent time, Nalan Qing Shan, disguised as a man, was ordered to join the army for her father and go to the front line. Unexpectedly, the Gongsun Mansion, which had been spying on the secret code for a long time, took the opportunity to forcibly marry Nalan Qing Shan's sister, blind her mother's eyes. Upon returning triumphantly, Nalan Qing Shan learned of this and was in great pain, determined to seek revenge and bring back her sister
