Kariya is a tall, fair-skinned man with a lithe but muscular body. He has crimson eyes with thick black eyebrows that sharply arch upward. A thin vertical scar on the left side of his chin. White hair that is both shaggy and neatly cropped short as it flares upward and outward, with a horn-like tip sticking out on either side of his head.

 Kariya wears an asymmetrically-designed dress shirt with a flared collar, an orange tie with a flat end. And a dark blue, ankle-length coat.