Qin Shuang, the female general who ruled the country, had great military exploits, but because of her outstanding achievements, she was recalled to the capital by an imperial edict and was forcibly included in the harem, becoming the emperor's caged bird. In the past, we had a golden iron horse, but now we have a golden cage. The court regarded her as a warrior, and the harem regarded her as an alien. However, no one knows that this female general is not only good at fighting, but also good at strategy. She planned the harem with battlefield tactics, turned the conspiracy into a sand table deduction, and worked step by step, tearing the white lotus with her hands, stepping on the adulterous concubine, and reviving a dead situation. At the same time, she secretly joined forces with the God of War Prince Xiao Yuanzheng, who had been guarding the border all year round and was also suspected by the emperor. Inside and outside the palace, the two are each other's chess players, working together to uncover a major case of collaboration and treason that has been buried for many years and could overturn the entire dynasty. In the end, Qin Shuang not only washed away the family's grievances, but also cooperated with Xiao Yuanzheng inside and outside to support Ming Jun and personally create a new prosperous era of Haiyanheqing.