Rule 34 Dev - 1boy 1girl bad_id bad_pixiv_id black_jack black_jack_(character) black_jack_(series) blush book brown_hair chair clothes_lift corded_phone duexduex flat_chest hair_bow hair_ribbon multicolored_hair multiple_hair_bows nipples phone pinoko ribbon scar shirt_lift short_hair stethoscope two-tone_hair|5025602790