Age: 16
Birthday: September 3
Height: 164.5 cm
Weight: 58 kg

Zenitsu Agatsuma is a member of the Demon Killing Corps and a traveling companion of Kamado Tanjirou.

Zenitsu has 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. Before he became a Demon Slayer, Zenitsu's hair was originally black, but it turned the color it is currently when he was struck by lightning during his training.

His name is actually pronounced Zen-itsu.