Bertine, the daughter of the Prime Minister and a Marquise's daughter in the wealthy small kingdom of Sanlouan, was supposed to get married in two weeks. However, she ends up being sent to the victorious country as part of the war reparations, despite her country not being directly involved in the war. Filled with despair and resignation, Bertine travels to the victorious country, where she experiences treatment she has never encountered before. After a moment of shock, she resolves to become strong enough that no one can hurt her again. The once gentle and elegant Marquise's daughter transforms into a strong individual in the enemy country, growing in power and influencing those around her.