An extraordinary new talent bursting with endless passion and desire makes her debut—Miki Sunohara. She prides herself on the rule "whoever cums first loses," hiding her pleasure no matter how intense, driven by a fiercely competitive spirit. It is precisely this strong-willed nature that unlocks the true power of the portio. The portio sensation is a realm of ultimate pleasure that affects dominant women most intensely. As she's exposed to overwhelming, electrifying stimulation unlike anything she's ever experienced, her resistance gradually crumbles, unleashing her eroticism in wild, uninhibited waves. A real training documentary where her body is dominated by portio stimulation and her mind is conquered through hypnotic arousal techniques. Won't you too be drawn in by her burning gaze and relentless intensity?