Sanemi is a tall, muscular and slender man. He has silver hair and dark purple eyes. Due to his frequent encounters with demons and the use of his special blood on them, his entire body is covered with crooked scars and scars. He is dressed in a black version of the standard Demon Slayer uniform, unbuttoned to expose his chest and abs, wearing a long-sleeved white cape over it, with kanji engraved on the back, denoting murder, white buckles on his shins and tabi socks with a pair of white dawns