The secret of the North Duke's aide

Elinora is forced to take the place of her twin brother, Edmund, and work as an aide to Duke Alaric, a cruel man living in the North. She disguises herself as a man and travels to the North.But what she finds in the North was not a cruel man but a cursed from guilty man struggling to survive. Seeing herself in him she decides to help him and do her job, but at the same time she makes sure that no one knows that it is not Edmund but Elinora.