Rule 34 Dev - 1girl black_hair blush breasts buttons close-up collarbone downblouse dress earrings ebifryman extended_downblouse head_out_of_frame heart heart_necklace highres idolmaster idolmaster_cinderella_girls jewelry leaning_forward medium_breasts necklace no_bra sakuma_mayu smile solo stud_earrings|24098100273