Kushana

Princess of Torumekia, youngest daughter of the Vai Emperor. In the anime, she lost one of her arms as a child during an Ohmu attack, and is driven by a desire for revenge against the giant insects. She intends to wipe the Sea of Corruption off the face of the earth, by any means necessary. While she is not presented as completely evil, she is definitely an antagonist. In the manga, she has a much more complicated role, more of an antihero/ally than an antagonist. She is mostly driven by a desire for revenge against her father and three older half-brothers, whom she hates and blames