Being from an ancient clan of exorcists, Kou is able to see supernaturals and interact with them (such as touching them and talking to them.) 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. Kou has a strong sense of justice.