Despite being in her twenties, Kobeni is a very shy and cowardly individual, especially in situations against devils. In the Eternity Devil arc, Kobeni easily breaks down into tears as she and her squad are trapped inside a hotel which is actually inside the stomach of a devil. But when it comes to humans opponents, she seems to become more courageous, showing her incredible fighting and acrobatics skills. As with all other devil hunters she wears a black suit and a black tie.