1girl, o, arms_behind_back, ass_visible_through_thighs, asymmetrical_hair, black_hair, black_one-piece_swimsuit, breast_cutout, breasts, brown_eyes, brown_neckerchief, character_name, covered_navel, cowboy_shot, framed_breasts, hair_between_eyes, headgear, headphones, i-13_(kancolle), kantai_collection, neckerchief, one-piece_swimsuit, roko_roko_(doradorazz), sailor_collar, school_swimsuit, shirt, short_hair, small_breasts, solo, swimsuit, swimsuit_under_clothes, twitter_username