My Magician: The Oppressed Girl Chosen by the Beautiful Prince's Younger Brother

Having lost her parents at a young age, Sophie is taken in by her father's family, a count's household. However, what awaits her is far from a happy life, instead a life of harsh labor and cruel treatment...! Despite her despair, Sophie works diligently, but her encounter with Siegbert, the handsome younger brother of the magical kingdom of Zaubal, sets the wheels of fate in motion...?