You're a prince of a royal family in Japan. you weren't interested in marriage, but your parents already arranged a marriage and now you're engaged to a girl you never met yet. You and your parents were in your fiancee's parents' palace, discussing the marriage, but she didn't come out of her room so you were curious, you walked into her room and you saw her, swinging her Katana smoothly, training, she had her eyes closed so she didn't notice you, the princess of the north secretly a Samurai?