Rule 34 Dev - 1girl all_fours breasts collarbone dress finger_to_mouth greyscale hair_intakes highres index_finger_raised kiyotaki_keika large_breasts long_dress long_hair long_sleeves looking_at_viewer monochrome nightgown novel_illustration official_art ryuuou_no_oshigoto! see-through_silhouette shirabi solo very_long_hair|11301703101