Hana Katsuragi

A student of class 1A she acts as an enforcer on school grounds but also she is the main architect of the physical abuses that Mafuyu and Tomo have to endure every day such as regularly throwing the class garbage can on them or forcing them to fill it after casually tripping on it to covering Tomos desk with writings and trash. Being the right hand of Miyuri she welcomes Ekaterina Kurae when she arrives in Japan and its here that her apparent fondness for lolicon is discovered as she becomes extremely embarrassed in Ekaterinas presence and while the latter fakes to fade out she kisses her out of lust. These events let her become the unwilling slave of her new mistress subject to humiliaton and erotic torment on a daily basis which on a side note made her very proficient in SampM such as making extremely complex nodes with little effort. She appears to have some masochistic tendencies as she derives pleasure from Ekaterinas abuses. Source: Wikipedia