1girl, ahoge, bat_wings, black_horns, black_wings, blue_archive, blue_background, blue_one-piece_swimsuit, collarbone, flat_chest, garukichi, gradient_background, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, long_hair, looking_at_viewer, low_wings, official_alternate_costume, old_school_swimsuit, one-piece_swimsuit, open_mouth, purple_eyes, school_swimsuit, solo, swimsuit, thighs, very_long_hair, white_hair, wings