B-ko Daitokuji

Biko Daitokuji (B-ko) is the primary antagonist of the anime film and OVA series, ''Project A-ko. ''She is a rich, spoilt high school student who possesses an uncanny talent for designing and building robots. She is also a childhood nemesis of the main duo. She is in love with C-ko but A-ko always seemed to be better liked. She develops robots to fight on her behalf (or an enhanced suit of power armor). She is very rich and has a gang of 4 friends.

Trouble in London
She joins the Brotherhood of Anarchy, due to her battle suit.