She is Index's first "friend" in Academy City. She is gentle but shy. Not much is known about her aside from the fact that she was an overachiever at Kirigaoka Academy for Girls (霧ヶ丘女学院, Kirigaoka Jyogakuin?), according to Aisa. Her ability is Counter Stop (正体不明, Shōtai Fumei?, "Unknown Identity"). Details about her level are unknown but it could be high, since it was mentioned that she was among the top psychics in the Kirigaoka Academy for Girls.

(Source: Wikipedia, edited by KazeFalcon)