"Ah. Then what later." Yan Yin said in surprise, "How did my father do it." "He made a very strange decision at that time. One night, he made an appointment with your mother to leave Wangbei City and enter the northern border." Xue Li said, "No news left behind. Just left like that." "Why." Yan Yin asked in confusion. Smiling. Xue Li said, "When I ordered them to find your father and your mother, I also asked the reason. Do you know how your father answered?" Nowaiting for Yan Yin to answer, Xue Li looked into the distance. You said, "People who are willing to come will come with you. Those who are unwilling to come will also have a reason to leave. This is the answer your father gave us." People who are unwilling to come will also have a reason to leave. This. Maybe the real key.