Combine "women disguised as men" with "double agents." The heroine is a princess who lost her country. She disguised herself as a man and sneaked into the enemy's palace to become the commander of the imperial army for revenge. However, she was accidentally spotted by the young emperor of the enemy country and appointed as his "personal companion". The two were forced to stage a drama of "deep love between emperor and minister" to cover up the emperor's dilemma of being suppressed by powerful ministers.
