saigyougi, stay gold (umamusume), umamusume, absurdres, commentary request, highres, 1girl, animal ears, black gloves, black hair, black pants, blush, brown eyes, brown hair, coat, ear covers, gloves, goggles, goggles around neck, hair between eyes, horse ears, horse girl, horse tail, knife, knife sheath, long hair, looking at viewer, multicolored hair, open mouth, pants, sheath, shirt, sky, smile, solo, stay gold (sunlit outsider) (umamusume), sweat, tail, teeth, white hair, white shirt, wrist belt, yellow coat