The secret agent Zhou Qingzhu was made a scapegoat by the trusted prince Li Ye. He was saved by Zhang Xiaomei, the commander of Beiyi Division, when he was in a desperate situation. The two of them shared the same roof and gradually fell in love. However, Li Ye threatened her with a favor and forced her to steal Qianxiazhu from Zhang Xiaomei. Zhou Qingzhu had a miserable life and no one to rely on. He gradually fell into the tenderness of Zhang Xiaomei. Zhang Xiaomei was burdened with a heavy responsibility and forbearing and restraining herself, but she could not give up Zhou Qingzhu's brilliance. Family, hatred, past relationship, imperial power... one shackle after another blocked the two of them. They kept moving forward just to be together for a moment.