The eldest brother was assassinated and the Shen family had no generals to send. The second daughter Shen Qingci resolutely took over her brother's "Jinghong Gun" and entered the military camp as a man. She rose to prominence on the battlefield with her superb martial arts skills, and forged a deep "brotherhood" with the regent Xiao Jingyi. The two worked together to defeat the enemy and protect Yanmen Pass. But her daughter's death could not be concealed for long. A serious injury completely exposed her identity, which not only caused an uproar in the court, but also made the relationship between her and Xiao Jamyi become delicate. On the one hand, the emperor's expectations for the marriage between his eldest sister and the prince, and on the other hand, the second prince's coveting of her military power. Shen Qingci shed his disguise and established himself in the world as "the general who governs the country." In the iron-blooded battlefield and the powerful court, he wrote a story in which red makeup determines the world, and deep love accompanies the mountains and rivers.