He and she were a brother and sister who had no blood relationship. She had never called him brother in person, just because she couldn't speak. From the first time he met her, he told her that he would protect her for the rest of his life. Neither he nor she knew how long a lifetime would be. They only knew that they would spend their entire lives loving each other. For her, he changed from a bad boy to a good boy, just for the words "I must cure your disease and make you speak like us." And he has made up his mind since he was a child that no matter where she goes in the future, he will find her and give her happiness••••••