Men in the Kingdom of Women Want to Break Their Vows

The Female Protagonist Travels to the Country of Nuzun, and the Male Protagonist Has a High Status and Strong Abilities, and Is Sweet and Doted On

The heroine traveled to the Nuzun country when she was very young, and she has been smart since she was a child. When the enemy invaded, she asked the heroine to be sent to them for marriage, and then the heroine defeated them. The hero was sent there since he was a child. It is best to have a grudge against the enemy's royal family, be powerful, and have no ambitions just to protect himself.