aogisa, stay gold (sunlit outsider) (umamusume), stay gold (umamusume), umamusume, highres, 1girl, animal ears, asymmetrical shirt, black boots, black hair, black pants, blush, boots, brown eyes, brown hair, closed mouth, coat, collarbone, ear covers, full body, goggles, goggles around neck, hair between eyes, horse ears, horse girl, horse tail, knife sheath, long hair, looking at viewer, multicolored hair, pants, sheath, shirt, simple background, smile, solo, tail, white background, white hair, white shirt, wrist belt, yellow coat