douma (kimetsu no yaiba), kimetsu no yaiba, highres, 1boy, belt, black jacket, black nails, black pants, blonde hair, blue background, boosk 01, cowboy shot, demon slayer uniform, drawing sword, fingernails, forked eyebrows, hair between eyes, haori, holding, holding sword, holding weapon, jacket, japanese clothes, katana, long fingernails, long hair, looking at viewer, male focus, nail polish, pants, parted lips, smirk, solo, swept bangs, sword, weapon, white belt, white haori