obanai

looks: Obanai is a young man of short stature, pale skin complexion, and a fairly muscular build. He has straight-edged raven-black hair of varying lengths, the longest reaching down to his shoulders and the shortest stopping at his cheekbones, which he wears down with two shorter strands hanging between his eyes. His eyes are almond-shaped and tilt upwards on the far sides, and are unique colored due to Obanai possessing heterochromia—his right eye is yellow and his left eye is teal. He is partially blind, barely able to see out of his right eye. Obanai's mouth is usually hidden by the bandage he wears over his lower face to hide his large facial scars, which were the result of his family horrifically cutting open his mouth to resemble that of a snake's gape.[5]

He wears a black standard Demon Slayer uniform, tinted deep koamaru in the anime, along with a black and white striped haori, the hem and cuffs of which are striped length ways rather than vertically, which covers his hands. Obanai also sports bandages as his leg-wraps around his calves giving the resemblance of more classic kyahan, as well as another set of bandages that cover his mouth, and white with blue-strapped zōri on his feet, with koamaru tabi socks. He is also always seen with his white snake, Kaburamaru, wrapped around his shoulders.
personality: Obanai is a very harsh and strict individual who shows no concern for those who do not abide by the rules of the Demon Slayer Corps.
weapon: Twisted Nichirin Katana
pet: a snake named kabamuru

breathing styles: Serpent Breathing (蛇へびの呼こ吸きゅう, Hebi no kokyū?): A Breathing Style Obanai created himself and mastered. This swordsmanship style makes use of twists and turns similar to how a serpent slithers to attack in strange ways. Obanai also learnt to incorporate his pet snake, Kaburamaru (鏑かぶら丸まる, Kaburamaru?), into this Breathing Style, making it extremely effective in combat as seen in the final battle where he could keep up with a weakened Muzan while completely blind and still managed to drive him into a corner.
First Form: Winding Serpent Slash, Second Form: Venom Fangs of the Narrow Head, Third Form: Coil Choke, Fourth Form: Twin-Headed Reptile, Fifth Form: Slithering Serpent