Taking the heroine Ling Qingyan's "career as a swordsman" as the main line, it combines the intrigues of the court and the chivalry of the Jianghu. It tells the story of her using the sword as the blade and the heart as the ruler, breaking the secular shackles of "women are not allowed to take charge of the military or enter the official career", gradually growing from a border official to an important member of the court who protects the laws of her family and country, and finally realizes the ideal of "ensuring the country with the sword and protecting the people with the law."
