sei (bigaa), agnes tachyon (umamusume), umamusume, absurdres, commentary request, highres, 1girl, ahoge, animal ears, bow, bra strap, brown hair, chemical structure, clipboard, coat, collarbone, covering own mouth, ear ornament, earrings, grey background, hair between eyes, hair bow, holding, holding clipboard, horse ears, horse girl, jewelry, lab coat, medium hair, off shoulder, red eyes, simple background, single earring, solo, white coat