1girl, blue_archive, blue_one-piece_swimsuit, covered_navel, flat_chest, hair_ornament, hairclip, haruharu_sensei, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, long_hair, looking_at_viewer, one-piece_swimsuit, purple_eyes, purple_hair, school_swimsuit, simple_background, solo, swimsuit, very_long_hair, whistle, whistle_around_neck, white_background, wings