1girl, arms_up, black_one-piece_swimsuit, breasts, brown_eyes, brown_hair, competition_swimsuit, cowboy_shot, electricity, electrokinesis, happy_birthday, misaka_mikoto, one-piece_swimsuit, pink_ribbon, psychic, ribbon, short_hair, small_breasts, solo, swimsuit, talesofmea, thighs, toaru_kagaku_no_railgun, toaru_majutsu_no_index, tokiwadai_school_swimsuit, two-tone_one-piece_swimsuit, two-tone_swimsuit