amo (pixiv24460428), agnes tachyon (umamusume), umamusume, 1girl, animal ears, black necktie, blush, brown hair, brown pantyhose, chemical structure, coat, ear ornament, earrings, hair between eyes, horse ears, horse girl, jewelry, lab coat, looking at viewer, medium hair, necktie, open clothes, open coat, pantyhose, parted lips, red eyes, short necktie, simple background, single earring, sleeves past fingers, sleeves past wrists, smile, solo, squatting, sweater, white background, white coat, yellow sweater