special week (umamusume), umamusume, 1girl, :d, animal ears, arm up, bow, brown hair, ear bow, horse ears, horse girl, looking at viewer, multicolored hair, neck ribbon, no lineart, open mouth, puffy short sleeves, puffy sleeves, purple bow, purple eyes, purple ribbon, ribbon, short hair, short sleeves, smile, solo, special week (racing) (umamusume), transparent background, two-tone hair, waonaolmao, white hair