A modern businesswoman suddenly time-travels and becomes Yang Ning, the gentle second daughter of the Yang family in the Chu Kingdom. Just as her eldest sister, the nation's war goddess, dies in battle, the family faces collapse, and her fiancé Shen Changyan publicly breaks off the engagement to humiliate her. Awakening to her strong personality, Yang Ning is no longer timid—she slaps the jerk right there and takes charge of the General's Mansion. Using her modern thinking, she audits accounts to find traitors, debates ministers in court, cleverly uses evidence to bring down the corrupt Grand Preceptor's faction, reforms the lax army, tames fierce generals with a mix of reward and punishment, and trains troops to eliminate bandits and quell unrest. Shen Changyan, who was originally supposed to take her in by marriage, goes from underestimating her to being won over, drawn in by her intelligence and courage. Together, they clean up the treacherous court, control the border troops, and Y
