This is a pic of her, by our lovely Rukia~Chan:
https://diaperedanime.com/gallery/sh...-roxie/cat/616
Roxie, in short, is a science experiment gone loose. She has the minds of herself, her sister, and some dark entity, all stuffed into one. She is smart, able to process information at least three times faster than any human. She outspeeds and outstrengths most adults, but not by a lot. Her power lies in inteligence, and durability. After the experiment her body stopped growing, developping horns and strengthening her bones instead. She can take imense hits without getting hurt. Roxie is a cunning and pretty horrible person, living for only herself, known for attacking or even killing humans for entertainment. But in 2/3 of her mind she is still a child. She still needs a person to care for her.