1girl, ahoge, arm_at_side, ass, bad_pixiv_id, barefoot, beach, black_horns, blue_archive, blue_one-piece_swimsuit, blue_sky, blurry, border, breasts, clenched_hand, closed_mouth, cloud, cloudy_sky, day, demon_girl, demon_horns, depth_of_field, forehead, from_side, frown, full_body, hair_ornament, hairclip, hand_up, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, leaning_forward, lens_flare, long_hair, looking_at_viewer, looking_back, mountainous_horizon, multiple_horns, ocean, official_alternate_costume, old_school_swimsuit, one-piece_swimsuit, one_side_up, outdoors, outside_border, parted_bangs, purple_eyes, school_swimsuit, seiza, shiny_clothes, sideboob, sidelocks, sitting, sky, small_breasts, solo, striped_horns, suke_(suke_oekaki), sunlight, swimsuit, thighs, twitter_username, very_long_hair, wavy_mouth, white_border, white_hair