In ancient times, as long as there was human civilization, there would be war, and as long as there was war, there would be refugees. For the disposal of refugees, the rulers usually take them in. First of all, they show their kindness and sympathy to all people at home. Secondly, these refugees can create productivity. However, 600 years ago, Judy accepted a group of refugees from Siberia. Unexpectedly, 200 years later, they became grave diggers in the Ming Dynasty.

Who are they? These refugees come from Siberia and are called Tunguska. They fish and hunt, and hunt for a living. They fled to the northeast of China during the Yongle period of the Ming Dynasty. Judy learned of the arrival of such a group of refugees and immediately arranged them in the northeast. So, they live with the original jurchen.

At first, there were many contradictions between the two nationalities. Because Jurchen never listened to the Ming Dynasty, Judy arranged Tunguska people to live here, with the aim of containing and weakening Jurchen. To Judy's surprise, after a long period of development, Tunguska people get along well with the original jurchen. What is even more unexpected is that the Tunguska leader Nurhachi also unified the ministries of Jurchen.

In this way, under the leadership of three generations of leaders: Nurhachi, Huang Taiji and Dourgen, the new Nuzhen invaded Shanhaiguan, unified China and established the Manchu regime as we know it. Now think about it, when Judy took the Tunguska people 600 years ago, he would never have thought of these. They will unify the Jurchen tribe in 200 years and eventually take over their own family.