Kou is a tall teenage boy with short, spiky ginger-blond hair, light blue eyes, and two protruding canine teeth. His delinquent-like personality and aura make him relatively unpopular. Kou is cheerful, direct and tends to jump into things headfirst without properly thinking them through. He is often misjudged as a bit of a delinquent or rude, but this is actually not the case. He is rash and loud but is also simultaneously very kind and caring. He makes a distinct effort to be polite. Loyal.