Sister-in-law Rei, who secretly has feelings for Yuu, her brother's beautiful wife, drags Yu into the sweet pleasures of Lesbos, but Rei eventually discovers the cause of her brother's death and begins revenge. - The brutal lesbian training of pain and sensual stimulation that a beautiful woman inflicts on her nipples, nasal cavity, and private parts is doubled by intense hatred...Yuu's beautiful face and limbs are exposed to merciless slaps and cracks of the whip, and soon Rei... - begins to show her face as a sadistic queen.