The Treacherous Minister at My Side: Your Highness, My Back Is Killing Me

She is a lecherous female assassin from the twenty-first century, transmigrated and reborn, devoted and cold-hearted. He is a puppet emperor with a peerless beauty hailed as the finest in the world, yet he has no real power. When war erupts at the border, she is finally persuaded to take command of the army. But who could have guessed that this lecherous female general would demand that he offer himself as her reward?