Himeko (ヒメコ) is the violent "yankee"-girl with a soft spot for cute things. She is the fighter/brawn to the Sket-Dan. In her past, she was called "Legendary Yankee Onihime (鬼姫)" which became a symbol of "power and fear." Himeko seems to now have "calmed down" from her days of being the Onihime and has become the second-chief to the Sket-Dan.
(Source: Wikipedia)
