Rule 34 Dev - 10s 1girl 2boys bad_id bad_pixiv_id blonde_hair blush brother_and_sister brown_hair cropped_jacket finger_marks grey_eyes jacket kaburagi_sui multiple_boys nishio_akira nishio_rina ootani_mikoto orange_eyes pants short_hair siblings sitting skirt smile soukyuu_no_fafner twins uniform|6728974317