2girls, animal_ears, beach, bikini, black_bikini, black_hair, blue_archive, blue_ribbon, blue_sky, blush, cat_ears, closed_mouth, cloud, collarbone, day, extra_ears, eyewear_on_head, frown, hair_between_eyes, hair_ribbon, halo, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), inflatable_toy, inflatable_whale, long_hair, multiple_girls, navel, ocean, official_alternate_costume, open_mouth, outdoors, pink_hair, red_eyes, ribbon, serika_(blue_archive), serika_(swimsuit)_(blue_archive), sky, standing, stomach, sunglasses, swimsuit, twintails, very_long_hair, w.k