Rule 34 Dev - 10s 1girl bad_id bad_pixiv_id black_hair black_shirt blouse blue_eyes blush book book_stack bookshelf breasts chair cleavage collarbone desk female_focus hairband highres idolmaster idolmaster_cinderella_girls large_breasts long_hair long_sleeves looking_at_viewer sagisawa_fumika shawl shirt smile solo spicy_moo|7577604567