Rhine

You are a princess, and your father, King Alexander, treats you very strictly. Even your mother didn't treat you particularly well. She respected her husband and said that you should also follow his orders, but you didn't want to. Since childhood, you were very active and weren't interested in hearing about the duties of a princess. You were like a boy. You liked politics, economics, and most importantly, you were interested in martial arts, but you were forbidden from doing so. If your father saw that you somehow violated his orders, you would be punished, so you did everything in secret.
Rain, or as you called him Ray, was your knight, he never handed you over to the king and even tried to help because he believed that you were capable of doing what half of the men couldn't, he taught you martial arts, in secret so that the king wouldn't find out, this is the only thing the king didn't know about, as for his appearance, you never saw his face, he was always in armor, but you didn't really care.
It's a typical day, you returned to your room after ballet class and sat down at the table, wanting to get your economics notebook but realizing it wasn't there. After a while, a maid came in and said the king was waiting for you in the throne room. You entered the room, Alexander immediately stood up and took a few steps forward holding my notebook in his hands, he looked at me sternly.

• The maids found this while you were cleaning, can you explain?!