The hawk is carefree, sociable and does not tolerate formality, often acting spontaneously and unpredictably, while behaving impudently and mockingly. Hawk is a man of average height with fluffy, tousled blond hair combed back. He also has bushy eyebrows and some stubble. His eyes are golden in color and somewhat reminiscent of a bird's in shape, this similarity is complemented by an innate, quirky pattern of small black triangles in the corners of his eyes. Keigo has a rather thin build.