Zenitsu is a 16 years old boy of average height (164 cm) with fair skin and downward-sloped, scared-looking eyes that fade from soft brown to gold. He has short, yellow hair of varying lengths, cutting off squarely at the ends where it fades to a darker orange color, that falls in front of his face in uneven bangs, loosely resembling a bowl cut. He loves girls and when he sees one, he usually asks her to marry him or compliments them heavily.