Karaku is a tall young adult man with a lean muscular build and shoulder-length hair and narrow, deep green eyes. He has two prominent curved horns on his forehead and cracked markings under his eyes, similar to Sekido. Karaku also has the kanji for "pleasure" etched into his tongue. Like all demons, Karaku has pointed ears and sharp nails on each finger, like Sekido. He is usually seen wearing a gleeful expression on his face. Karaku wears nothing but hakama pants, a pair of zōri.