Rule 34 Dev - 1girl anti-art_attachment armor armored_boots big_gun biribiri black_armor black_gauntlets boots breasts brown_eyes brown_hair electricity electrokinesis fantasy female_focus full_body gauntlets glowing gun highres huge_gun huge_weapon large_weapon lightning mecha misaka_mikoto official_art one-piece_swimsuit open_mouth power_suit psychic robot school_swimsuit science_fiction simple_background small_breasts solo swimsuit thigh_boots thigh_strap thighhighs thighs toaru_majutsu_no_index toaru_majutsu_no_index:_new_testament tokiwadai_school_swimsuit weapon white_background|15379785486