Karai is the daughter of Oroku Yori and a direct descendant of Oroku Saki, about three hundred years after his supposed death in feudal Japan. As a young girl, Karai found the Ashi no Himitsu and discovered the warrior history of the Foot Clan, using it to train herself in martial arts and ninjutsu. She began living a double life as both a respectable Japanese daughter and as a fierce ninja-in-training.
