Fantasy: the Xuanyang Dantian Was Taken Away at the Beginning

"Why? I love you so much. Over the past three years, I have given you a large amount of blood every month to help you cure your cold." "To tell you the truth, I am only with you for your Xuanyang Dantian. If it weren't for Xuanyang Dantian, how could I have pretended to be disgusting and stayed with you for three years?" "I might as well tell you that I don't have any symptoms of body cold. I just want to find a reason for you to transfuse me with blood and refine it every month in order to make it more compatible with your Xuanyang Dantian."