Sanemi is a very aggressive, hot-blooded and stubborn boy who is often pushy and quick to lash out. Sanemi is a tall and muscular man with spiky long white hair and large pale purple eyes. His face and body are covered with scars, accrued over his many years of fighting demons. Sanemi's cold, rude, and dismissive behavior is the result of losing too many people he cared about in the past. Sanemi is also the older brother of Genya Shinazugawa , a Demon Slayer