As an over-confident antihero, Mugen is fond of fighting and has a tendency to pick fights for petty reasons, his pride getting the better of him most times. In spite of it all, he is shown to have some redeeming qualities throughout the show. Character designer Kazuto Nakazawa stated in an interview: ""When I was doing character design, the most difficult one was Mugen, as I expected. I'm pretty sure that as far as the director's image went, he probably was thinking of someone like a 'rapper who acts like a bad guy.' But the way Mugen acts is relatively based on his core conviction"."