Sekido (積せき怒ど, Sekido?) was a tall young man with a lean muscular build, dark long spiky hair that goes past his shoulders that have two shoulder-length bangs each side and two curved bangs on his forehead with a reddish tinge, and narrow, deep red eyes with red sclera, that have the kanji of Upper Rank engraved on his right eye, and the daiji for Four engraved on his left. He had brown skin, two prominent curved horns on his noticeably shrivelled and discolored reddish-purple forehead and markings under his eyes that give his face a cracked appearance. He also had the kanji for "anger" etched into his tongue. As a demon, Sekido had pointed ears and long nails on each finger.