2girls, animal_ears, arm_up, armpits, beach, bikini, blue_sky, breasts, brown_hair, closed_eyes, closed_mouth, cloud, cup, daiwa_scarlet_(trifle_vacation)_(umamusume), daiwa_scarlet_(umamusume), day, drinking_straw, fang, frilled_bikini, frills, hair_between_eyes, hair_over_one_eye, holding, holding_cup, horse_ears, horse_girl, large_breasts, long_hair, lying, multicolored_hair, multiple_girls, nabe_puyo, navel, ocean, official_alternate_costume, on_back, outdoors, red_bikini, red_eyes, red_hair, sitting, skin_fang, sky, streaked_hair, swimsuit, twintails, umamusume, vodka_(umamusume), white_hair