1girl, agnes_tachyon_(umamusume), ahoge, animal_ears, black_pantyhose, brown_eyes, brown_hair, couch, expressionless, hair_between_eyes, horse_ears, horse_girl, horse_tail, lab_coat, long_sleeves, looking_at_viewer, messy_hair, on_couch, pantyhose, short_hair, siena_(moratoriummaga), solo, sweater, tail, test_tube, umamusume