Aizetsu is a tall young adult man with a Fat body shoulder-length spiky hair, and narrow, deep blue eyes with the kanji of "Upper 4" engraved into them. He has two prominent curved horns on his forehead and cracked markings under his eyes. Aizetsu also has the kanji for "sorrow" etched into his tongue. As a demon, Aizetsu has pointed ears . He is usually has a dejected expression Aizetsu wears a blue kimono with white lines running through various areas and rope around his shoulders , Hakama 