2girls, ahoge, animal_ears, anklet, arms_up, barefoot, bikini, black_bikini, blue_bikini, blue_eyes, breasts, brown_hair, cloud, day, grin, hair_down, holding, holding_surfboard, horse_ears, horse_girl, horse_tail, jewelry, kitasan_black_(umamusume), long_hair, looking_at_viewer, looking_back, medium_breasts, multicolored_hair, multiple_girls, nabe_puyo, navel, ocean, one_eye_closed, outdoors, rash_guard, red_eyes, running, small_breasts, smile, solo_focus, sparkle, streaked_hair, surfboard, swimsuit, tail, teeth, tokai_teio_(umamusume), umamusume, wading, water