Zenitsu Agatsuma (我あが妻つま 善ぜん逸いつ Agatsuma Zen'itsu?) is one of the main protagonists of Demon Slayer: Kimetsu no Yaiba and a traveling companion of Tanjiro Kamado. He is also a Demon Slayer in the Demon Slayer Corps.
Zenitsu is a young man 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. 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.
For some time following the battle at Natagumo Mountain, his limbs temporarily shrunk due to Demonic poison but were able to return to normal afterward thanks to the medicine given to him by Shinobu Kocho.
He wears a paler brown version of the standard Demon Slayer uniform, which consists of a dark brown gakuran jacket, a white belt around his waist and hakama pants that extend, as well as his signature white-triangle patterned, yellow and orange gradient haori. As well as this, Zenitsu also sports a pair of tabi socks, tied at the front in 3 white bows, with the same pattern as his haori, and white-laced footwear.
Yahaba (矢や琶は羽ば Yahaba?), also known as the Arrow Demon (矢や鬼おに Ya oni?), was a Demon who aspired to join Muzan Kibutsuji's Twelve Kizuki.
Yabaha was a young man of an average build with pale, gray-tinted skin and very short black hair. He had red, cat-like eyes that he normally kept shut, as well as another pair of pale-ringed orange eyes on the palms of his hands, a red upward-pointing arrow marked on each of the irises and the sclera a of glowing dark green color.
Yabaha wore a plain olive-green yukata with a brown sash and a dark gray haori, decorated by a strip of green that ran down his arms from his shoulders to his wrists. He also sported white socks and a pair of brown, black-laced sandals, along with a necklace of large blue pearls.