1girl, ahoge, black_horns, black_one-piece_swimsuit, black_wings, blue_archive, blue_sky, breasts, cloud, day, hair_between_eyes, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, long_hair, low_wings, ocean, official_alternate_costume, old_school_swimsuit, one-piece_swimsuit, outdoors, poinia, purple_eyes, school_swimsuit, sky, small_breasts, solo, standing, standing_on_one_leg, sunlight, swimsuit, whistle, whistle_around_neck, white_hair, wings