1girl, agnes_tachyon_(umamusume), ahoge, alternate_costume, animal_ears, ass_visible_through_thighs, beach, bikini, black_bikini, brown_hair, day, front-tie_bikini_top, front-tie_top, hair_between_eyes, horse_ears, horse_girl, horse_tail, jacket, jacket_over_swimsuit, looking_at_viewer, ocean, outdoors, red_eyes, side-tie_bikini_bottom, simoyuki, solo, swimsuit, tail, umamusume