Ada Vessalius

Birthday: June 2 Oz's little sister who adores him very much. After 10 years, she attends Latowidge (ラトウィッジ), a prestigious school for nobles, of which she is a prefect. She keeps in contact with Oscar via letter and causes Oz and co. to sneak into Latowidge as she wrote that she has found a person she likes. ~From Wikipedia ~from the 46th chapter