She is a princess who governs the world. She is wise and kind. Politics and power are the shackles of life, but her innate sense of responsibility prevents her from breaking free.
He is a powerful civil and military prime minister, deep and indifferent. In order to escape the shackles of fate, he has to pursue politics and power, just to get a glimmer of light after the dust settles.
He married her for profit; she married him for true love. For each other's purposes, they can be a harmonious couple at home, chatting and playing the piano, drinking tea and wine, and are extremely comfortable. But in court, he had to betray her for revenge; and she had to use tactics to become his enemy in secret for the sake of the country and the people.
This is a confrontation between light and darkness. Before the bet is revealed, who loses and who wins cannot be discussed lightly...