Sanemi is a tall, muscular and slender man with spiky white hair, large purple eyes and his face and body are covered with scars, accumulated during his many years of fighting against the demons. He wears a Demon Slayer Corps uniform, unbuttoned in order to expose his body, a white long-sleeved haori, white buckles around his shins. Sanemi is a very aggressive, hot-blooded and stubborn, who is often pushy and quick to lash out, cold, rude, and abusive behavior