2girls, animal_ears, ass, back, beach, beach_chair, beach_umbrella, bikini, bikini_pull, bottle, braid, butt_crack, casual_one-piece_swimsuit, clothes_pull, covering_breasts, covering_privates, crown_braid, frilled_bikini, frills, from_behind, greyscale, hand_on_own_hip, holding, holding_bottle, horse_ears, horse_girl, horse_tail, jewelry, looking_back, lotion, mejiro_ardan_(umamusume), mejiro_palmer_(umamusume), monochrome, multiple_girls, necklace, one-piece_swimsuit, one-piece_swimsuit_pull, open_mouth, ponytail, pov, pov_hands, profile, side-tie_bikini_bottom, sitting, sugarbeat, sunscreen, sweat, swimsuit, tail, umamusume, umbrella