Oda Yuma is leading a life that everyone envies because he has obtained the hypnosis investigation app Hypnos. However, a lecherous demon named "Arume Rina" suddenly announces the end of the app tester and forces him to settle his bills. In exchange for the contract, the whore is required to pay with the thing that feeds the whore, male semen = energy of desire. The sperm continues to be sucked to the persistent blame of Rina repeated without stopping. I've been indulging in pleasure, and I'm at the limit of my control! He is devoured by his sexual desires and eventually becomes bestial. Is it pain or pleasure... What is the figure that reached the end?