In a mysterious salon, Akari Niiyama finds herself under the spell of a perverted masseur, losing control and begging for more of his massive cock. As her friend watches helplessly, they both succumb to the pleasure of being dominated by the monstrous member. Meanwhile, two fans of their teacher bring another young woman into the fold, manipulating her body and mind until she too becomes ensnared in their depraved desires. The once innocent girls are now completely at the mercy of their newfound lusts, driven wild by the relentless pounding of the enormous phallus that controls them all.