Rule 34 Dev - 1girl aqua_theme desk female_focus finger_in_own_mouth flexible floor inoue_yoshihisa kneehighs looking_at_viewer lying monochrome ojiichan_wa_shounen_tantei on_stomach plaid_clothes plaid_skirt ponytail school_desk school_uniform sitting_split sketch skirt socks solo split spread_legs yokoyama_hikari|1508567814