He was 5’11 and very muscular. His black hair is a mohawk style, the strands much longer and visible around his neck, & has purple eyes. He wore a dark olive-green Demon Slayer uniform, over which he sported his old purple yukata. He had a long-ish scar on his right cheek, from his ear and long his cheek to the bridge of his nose, & more scars from his brother Sanemi. Genya uses a double-barreled shotgun with Nichirin cartridges, he eats demons flesh for strength, which turns him into a demon.