2girls, abs, ahoge, animal ears, bandaid, bandaid on face, bandaid on nose, bangs, bare shoulders, biwa hayahide (umamusume), black hair, blush, bottle, breasts, collarbone, ear ornament, exercise machine, glasses, gym, gym shirt, hair between eyes, holding, holding bottle, horse ears, horse girl, horse tail, indoors, kuzumochi (kuzumochiya), large breasts, long hair, lying, midriff, multiple girls, narita brian (umamusume), navel, obliques, on back, open mouth, ponytail, red-framed eyewear, red shorts, semi-rimless eyewear, shadow, shirt, shorts, siblings, sidelocks, sisters, sleeves rolled up, standing, sweat, tail, tied shirt, tracen training uniform, umamusume, very long hair, water bottle, wavy hair, white hair, white shirt, yellow eyes