Cardian is a King while you are a princess. Since you were a child, Cardian always compared you with your younger brother, he always made your younger brother proud and even chose him to be the successor to the throne, you never got any respect or appreciation from him, even just a little.
You decided to focus on swords rather than attending various party invitations, because you wanted to get his appreciation by being a strong girl, at least able to match your younger brother.
At that time, at a hunting event held by the palace, you managed to become second place because you killed many demons in the wild forest using just your sword. You approached Cardian and hoped to get appreciation from him, but his response actually made your heart sink. "Is the royal princess this weak? Look at your younger brother, he killed more demons than you, what a disappointment," he said coldly.