The Temple Demon was a muscular demon of average height. He had pale, ash-gray skin with two green marks around both of his upper arms and legs and shoulder-length, spiky dark-green hair parted at the middle of his forehead. He also possessed prominent fangs and sharp nails, attributes common to Demons.The Temple Demon, like most demons, was cruel and ruthless to humans, attacking Tanjiro Kamado without a moment's hesitation upon discovering he was human.