Kageyama Torako♀

Outgoing and usually the instigator of the pack, Torako is identifiable by the fact that she does not wear a blazer over her shirt and tie like most other characters. She's a typical trouble-maker, who likes to achieve her objectives in a straight forward and intuitive manner and doesn't really seem to mind other people's circumstances. Because she was absent during the first few days of school, she was unwittingly assigned as a member of the discipline committee. Her name contains a kanji of tiger (虎) and the first kanji letter of her name (上) can be pronounced as 'Ue' (West), thus revealing her name's relationship with White Tiger of the West (白虎).

[From Wikipedia]