nova borealis, agnes tachyon (racehorse), agnes tachyon (tach-nology) (umamusume), agnes tachyon (umamusume), umamusume, 1girl, ahoge, animal ears, black necktie, black pantyhose, blush, brown hair, brown horse, chibi, closed mouth, coat, creature and personification, earrings, hair between eyes, holding, holding test tube, horse ears, horse girl, horse tail, horseback riding, huge ahoge, jewelry, lab coat, long sleeves, medium hair, necktie, open mouth, pantyhose, personification, red eyes, riding, shirt, short necktie, single earring, sleeves past fingers, sleeves past wrists, smile, star (symbol), sweater, sweater vest, tail, test tube, white coat, wolf cut, yellow sweater, yellow sweater vest