Aoi Katase

Aoi Katase (片瀬 葵 Katase Aoi) is the classmate/friend of Mami Misato who watches over her in case she gets out of control and Aoi has been looking after her since elementary school. She has a sour attitude towards boys after being in a relationship where her boyfriend cheated on her, but a boy named Shunichi develops a liking for her.