1girl, ahoge, black_horns, blue_archive, blue_one-piece_swimsuit, blush, evening, flat_chest, grey_hair, hair_ornament, hairclip, halo, hanamoto410, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, long_hair, looking_at_viewer, multiple_horns, name_tag, one-piece_swimsuit, one_side_up, outdoors, parted_lips, purple_eyes, school_swimsuit, sky, solo, sunset, swimsuit, upper_body, very_long_hair, wet, whistle, whistle_around_neck