In the Northern Dynasty, Feng Huaijin, the "eldest son" of the Zhenbei Hou Mansion, is actually a daughter. In order to inherit her title and stabilize her morale in the army, she hid her true appearance since she was a child and traveled around the court and borders, becoming famous for her literary, Taoist and military skills. At a palace banquet, she "accidentally" met Xiao Qingyin, the emperor's favorite princess from Anyang. Is the princess's closeness sincere admiration, or is it a test with ulterior motives? In the turbulent struggle for imperial power, how can two women with noble status and superior intelligence distinguish their true hearts, overcome dangers together, and finally find the destination of their family, country and emotions in the confusing situation of strong confrontation and secret love?
