special week (umamusume), umamusume, 1girl, :d, alternate hair color, 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, simple background, smile, solo, special week (racing) (umamusume), transparent background, waonaolmao