Haunted by Old Grudges

I heard from my grandfather that my ancestors were still famous and powerful, and later they rebelled and usurped the throne. But gradually my family became more and more declining and the population became thinner and thinner. After asking Mr. Yin Yang, I found out that the problem lies in this old grudge. We have to find the genealogy, find the hometown of our ancestors from generation to generation, and then start from the hometown to find the emperor who was forced to death by our rebellion... "Suspense, Supernatural, Past Grudges, Double Cleansing and Domination, Fighting Monsters and Upgrading"