Rule 34 Dev - 1girl barefoot bike_shorts black_hair collarbone crossed_legs expressionless feet female female_focus highres idolmaster idolmaster_cinderella_girls light_blush loli mukago_(mukagomumumu) ribs sasaki_chie short_hair simple_background sitting skinny soles solo sweat toes tomboy topless towel towel_around_neck white_background|3337280189