Rule 34 Dev - 1girls arm_support big_breasts bikini blue_bikini blue_eyes book breasts cleavage female green_jacket hairband hi_res idolmaster idolmaster_cinderella_girls indoors jacket jacket_removed kos-owl long_hair looking_at_viewer navel pinup sagisawa_fumika shiny_skin sitting smile solo solo_focus striped_bikini toned wooden_floor|5304322288