Despite her cute expression, the devilish older sister, Riona Hirose, abuses men in a harsh Kansai dialect. A bunch of M-men with useless dicks gather around her, desperate to be bullied by her harsh Kansai dialect. "I won't accept anything unless it's a thick, full load of sperm!" Will the M-men be able to satisfy Riona, endure the intense teasing, and finally squirt the thick sperm from their balls into her pussy?