Kyoya is a tall, teenage boy with tanned skin and a muscular figure. He has spiky dark green hair with a shoulder-length ponytail at the back of his head. He has sharp blue eyes with irises notably smaller than that of other characters. He also seems to have fangs, which combined with his spiky hair, tan skin, and sharp eyes, make him resemble a lion. He has symmetrical scars on his cheeks in the shape of X's, extending from just under his eyes to the level of his mouth.