The 4th student in Japanese alphabetical order of class 2/3-A, she is the hidden intelligence of the class, a member of the Library Exploration Club yet at the same time a part of the infamous Baka Rangers due to her hatred of studying and schoolwork. Although initially enthusiastic in helping fellow Library club member Nodoka Miyazaki gain Negi's heart, she soon develops feelings of her own and is constantly trying to come to terms with where she wants to stand between the two of them. However, her own interest in magic and the supernatural draws her into Negi's group, both in learning magic as well as becoming a Pactio partner.