kaijin debeso, agnes tachyon (umamusume), umamusume, commentary request, highres, 1girl, ahoge, animal ears, ass, black pantyhose, brown hair, brown tail, closed eyes, coat, ear ornament, full body, hair between eyes, horse ears, horse girl, horse tail, huge ahoge, jack-o' challenge, lab coat, long sleeves, medium hair, pantyhose, simple background, solo, tail, top-down bottom-up, white background, white coat