Rule 34 Dev - 1girl 2boys ao_tanuki armpits bare_arms bare_shoulders boku_no_kokoro_no_yabai_yatsu breasts chair classroom closed_mouth desk eraser from_below greyscale highres holding ichikawa_kyoutarou large_breasts long_hair looking_at_viewer looking_down monochrome multiple_boys on_chair presenting_armpit school_chair school_desk short_hair sitting smile yamada_anna|23267983167