Hailing from France, Sophie is a distant niece of Countess Montgomery's late husband. At the beginning of the series, she puts up a sweet and innocent facade while scheming to put Lynn in a bad light in order to ensure that the Countess' inheritance will go to her family. She loves her mother dearly and does what it takes to please her even though she knows that actions against Lynn were wrong. Fear of being lonely in her life, she is afraid of being put into a dormitory. Lynn, being a naïveté, cared for her as her little sister and understands what she is going through. Though Sophie has a mother, she doesn't feel any motherly love from her. After the incident her pet squirrel Leonard, Sophie changed her attitude towards Lynn and become friendly with her.

Source: Wikipedia.