Rule 34 Dev - 1girl :p angry arms_behind_back bare_shoulders bdsm belt_collar blush board_eraser bondage bound braid breasts breasts_out chalk chalkboard classroom cleavage collar cowboy_shot desk dutch_angle female_focus frills game_cg glasses huge_breasts indoors linked_piercing lock locked_nipple_piercing looking_at_viewer mature_female miniskirt name_tag nipple_piercing nipple_rings nipples no_bra open_clothes open_mouth open_shirt padlock pencil_skirt piercing ponytail public_indecency public_nudity purple_eyes purple_hair rinkan_club ruler school shiny_skin shirt short_hair side_ponytail sidelocks skirt sleeveless sleeveless_shirt solo standing sumeragi_kohaku swept_bangs teacher tongue tongue_out tongue_piercing yamasaki_suzuko|1497010437