4girls, d, animal_ear_fluff, animal_ears, armpits, ayane_(blue_archive), ayane_(swimsuit)_(blue_archive), beach, bikini, black_bikini, black_hair, blue_archive, blue_sky, cat_ears, cat_girl, cloud, cloudy_sky, collarbone, dawon, fang, frilled_bikini, frills, glasses, grey_hair, hair_between_eyes, hair_bobbles, hair_ornament, halo, hammock, heterochromia, holding, holding_removed_eyewear, horizon, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), in_water, kneeling, long_hair, looking_at_viewer, low_twintails, lying, multiple_girls, navel, nonomi_(blue_archive), nonomi_(swimsuit)_(blue_archive), ocean, official_alternate_costume, on_back, outdoors, parted_lips, pink_hair, playing, removing_eyewear, sand_castle, sand_sculpture, serika_(blue_archive), serika_(swimsuit)_(blue_archive), shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), short_hair, sidelocks, skin_fang, sky, sleeveless, smile, solo_focus, spaghetti_strap, stomach, sunglasses, swimsuit, twintails, unworn_eyewear, white_bikini, wolf_ears, wolf_girl, yellow_bikini