Kyotaro Kakei has always had an affinity towards books in hopes to find answers to his life. With a mentor's promise, he continues to search for a book with his absolute hope. However, this changes when he receives a foretelling message saying that "Today, something will happen that will change your fate. --From the Shepherd." Due to this premonition, his normal school life at Shiomoi Academy becomes entangled due to the optimistic Tsugumi Shirasaki and the Shimoi Happy Project.

The main character has been hospitalized for medical checkup. As nurses take care of him kindly, his sexual desire gradually becomes bigger.... "If they took care of my sexual desire as well, it would be great...." One day, he receives an email from someone unknown. "Do you know what will happen to the girls who have been sexually insulted completely?" The email arouses his sexual desire, and he finally starts raping the nurses....