Sora who got seriously injured and dying was saved and hospitalized. He was then move 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 kins with him, so a nurse, Yuu Yagami, was put in charge. As a reward during the process, the director gives him authority to do what he wants not just to Yuu the nurse.