1girl, bad_twitter_id, bikini, black_bikini, breasts, brown_eyes, brown_hair, cleavage, closed_mouth, fujikawa_daichi, looking_at_viewer, navel, shirai_kuroko, simple_background, small_breasts, solo, stomach, sweatdrop, swimsuit, toaru_kagaku_no_railgun, toaru_majutsu_no_index, two_side_up, white_background