Uni is a girl with red eyes and black hair worn in two pigtails that are tied up by two black ribbons with white stripes. She wears a black one-piece pleated dress decorated with white stripes at the bottom of the pleats. Uni is a minor tsundere, however she is much more friendlier and less arrogant than a typical tsundere. Uni is very observant in other people's dialogue. She notices when people say things that contradict each other, various traits from their dialogue, and other strange things.