She=him. When his father died, he entrusted her to his old friend. Because he did not want his daughter to be bound by the rules of the world, he raised her as a man since she was a child. She practiced martial arts since she was a child and became successful in protecting the son of her benefactor.
She has a gentle and virtuous personality, the daughter of a prime minister who is more powerful than anyone else. She is proficient in music, chess, calligraphy and painting, and has already become famous in the capital at a young age.