Yuma Oda had been living an enviable life thanks to "Hypnos," a hypnosis-control app he had acquired.
However, Rina Aryume—a succubus—suddenly informs him that the app testing period has ended and demands payment for the services used.
As the price of the contract, he is required to pay with the succubus's sustenance: male semen—the very energy of desire.
Rina’s relentless, ceaseless torment drains his semen away.
Indulging in hedonistic ecstasy, he is forced to ejaculate far beyond his limits!
As his lust is devoured, he begins to transform into a beast driven by carnal desire.
Is it agony or ecstasy...? What state will he ultimately reach?
Includes the final chapter of the original work, *Succubus App <School Hypnosis>*.
