2girls, abs, ahoge, animal_ears, bandaid, bandaid_on_face, bandaid_on_nose, 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