1girl, alternate universe, anklet, bead anklet, bead bracelet, beads, black background, blue cloak, blue eyes, blue kimono, bracelet, cloak, colored eyelashes, demon girl, eyelashes, facial mark, fingernails, forehead mark, full body, fur-trimmed cloak, fur trim, geta, glowing, gradient clothes, hair bun, hair ornament, hair pulled back, hair stick, half updo, hand up, japanese clothes, jewelry, kimetsu no yaiba, kimono, koyuki (kimetsu no yaiba), light particles, long fingernails, long hair, looking at viewer, obi, pixiv 51363053, pom pom (clothes), red nails, ribbon-trimmed sleeves, ribbon trim, sash, sharp fingernails, simple background, single hair bun, snowflake hair ornament, snowflake ornament, snowflake print, snowflakes, socks, solo, standing, tabi, white hair, white socks, wide sleeves