Yang Guo has suffered too much in his life, physically and mentally. Very precocious, gray hair at the age of 30. The little dragon girl, because of her simple nature and the efforts of the ancient tomb school to preserve health, is too affectionate, but it will not be too harmful after all. The book says that Yang Guo is 36 years old and Little Dragon Girl is 40 years old, but Yang Guo seems to be much older than Little Dragon Girl. So it's hard to say how long they will live, but Yang Guo will not survive the little dragon girl.