3girls, animal_ear_fluff, animal_ears, black_one-piece_swimsuit, blue_archive, blue_eyes, blue_sky, breasts, cat_ears, cloud, competition_swimsuit, covered_navel, cross_hair_ornament, day, extra_ears, feet_out_of_frame, grey_hair, hair_ornament, halo, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), looking_at_viewer, low_ponytail, medium_breasts, medium_hair, milkcandyer, mismatched_pupils, multicolored_clothes, multicolored_swimsuit, multiple_girls, official_alternate_costume, one-piece_swimsuit, outdoors, pool_ladder, serika_(blue_archive), serika_(swimsuit)_(blue_archive), shiroko_(blue_archive), shiroko_(swimsuit)_(blue_archive), sitting, sky, solo_focus, swimsuit, wolf_ears