An elite doctor Kuwahara couldnt forget his thought toward Nanase Ren, whom he had loved in his youth. Then he changed the hospital to work one after another to look for her, and finally he met her again at the St. Cattleya Hospital. However, her attitude was remote and his love couldnt be fulfilled. To make the matter worse, he received photograph on which Ren was molested. Ren had been turned into a lewd woman by Hirasaka by the woman body experiment when she was at the St. Julianna Hospital. He was disappointed and he lost his mind. Kazama Mana who was a nurse of the gynecology and obstetrics section, loved Kuwahara, and she resembled Ren. Taking advantage of her thoughts, Kuwahara raped her and deprived her virginity shouting the name of Ren.

Sora, who was critically injured, was saved and hospitalized. He was then moved to a special ward by the beautiful director, Reika Mikage, because of his "healthy" body. After meeting her, he was asked to be a test subject for a new medicine. He has no kin, so a nurse, Yū Yagami, was put in charge. As a reward during the process, the director gave him the authority to do what he wants not just to Yū, but other members of the hospital staff.