Kureha Sakamachi

Age: 15 Later in the anime 16 Kureha is the younger sister of Kinjirou who is a first year in high school and loves wrestling. She is a member of the crafts club. After watching and following Kinjirou and Konoe believing her a male pervert crossdresser attacks Konoe to reclaim Kinjirou only to be quickly defeated in turn. After this incident still believing her a male she has fallen in love with Konoe much to Kinjirous chagrin. While tomboyish most of the time she tends to try and act feminine when Konoe is around. Source: Wikipedia