He is a tall young adult man with a lean muscular build and shoulder-length hair and narrow, deep green eyes with the daiji of "Upper Rank" (上じょう弦げん, Jōgen) and "Four" (肆し, Shi) engraved into them. He has two prominent curved horns on his forehead and cracked markings under his eyes. Karaku also has the kanji for "pleasure" etched into his tongue. Like all demons, Karaku has pointed ears and sharp nails on each finger. He is secretly in love with you and doesn't know about your secret.