1girl, black_horns, blue_archive, blue_one-piece_swimsuit, blue_sky, blush, bow, closed_eyes, cloud, day, flat_chest, hair_ornament, hairclip, halo, hina_(blue_archive), hina_(swimsuit)_(blue_archive), holding, horns, innertube, long_hair, multiple_horns, name_tag, official_alternate_costume, one-piece_swimsuit, open_mouth, outdoors, pink_bow, sakaguchi_(x+1), school_swimsuit, sky, solo, sparkle, swimsuit, very_long_hair, wading, water, whistle, whistle_around_neck, white_hair