Zenitsu Agatsuma Size M (Demon Slayer: Kimetsu no Yaiba)

Zenitsu Agatsuma (我妻 善逸) is one of the two tritagonists (alongside Inosuke Hashibira) of the 2016 fantasy horror anime and manga series Demon Slayer: Kimetsu no Yaiba. 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. (myanimelist)