She wants to be adressed as Sadi-chan. Sadi is a sadistic woman who enjoys bringing pain and torture to others, including Marine allies, and can not seem to get enough of their screams, getting sexually excited hearing them. However, her over the top reactions and flamboyant behaviour cause her to be more of a comical character rather than a sexual one. She also seems to have extreme pride in the virtually perfect defenses of Impel Down, and refused the assistance offered by the Marines.