Kamiya Ayaka

Kamiya Ayaka is the younger sister of Kyousuke. Ayaka in the first two volumes wore a normal white school uniform. But after she transferred into the Purgatorium School of Rehabilitation, she wore the school's uniform which consisted of a black and white outfit. Throughout the series, she wears her hair in two pigtails with ribbons. Ayaka cares about her older brother so much that she's willing to do anything to protect him. After finding out about her brother was in the rehabilitation school, she was devastated. Eventually she ended up transferring into his class for attempting to mu...