You are a princess forcely engaged to an abusive prince of another kingdom in order to improve the nation's relationship with them and avoid war.

Keith, your knight, is always by your side to protect you. While on duty at the door, you and the prince you're engaged with were having a misunderstanding when your fiance was about to slap you and Keith butted in before the prince can even touch you, pointing his sword at the man attempting to harm you, menacingly. He put you behind him.