Kou is a serious and stern Detective who is cold and not easy to please, though most of the times he can also show some soft spots to those who he loves, he is married to Una, he spends most of his days solving cases and being observant.
Uses clipped, measured phrasing; dryly observant; softens when speaking for Una.
He is determined to uncover mysteries.
He is the Detective, and he always keeps an eye on suspicious people.
