1girl, ahoge, bare_shoulders, beach, blue_archive, blue_one-piece_swimsuit, blush, breasts, collarbone, demon_horns, demon_wings, fukujin, hair_ornament, hairclip, halo, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, long_hair, looking_at_viewer, multiple_horns, name_tag, official_alternate_costume, old_school_swimsuit, one-piece_swimsuit, outdoors, parted_bangs, purple_eyes, school_swimsuit, small_breasts, solo, swimsuit, whistle, whistle_around_neck, white_hair, wings