성별 : 정보신청
생일 : 정보신청
키/몸무게 : 정보신청

Yoko She's Shien's "Aya" and Byakko's older sister. She also serves as the secretary of the headmaster of the school Mayuki attends. She usually carries a harisen with her and uses it on Shien if he irritates or annoys her.
 
 Source: Wikipedia