Failed to Seize the Direct Descendant, the System Broadcast Live Broadcast That the Dynasty Will Be Destroyed After My Death

I failed to seize the legitimate title and was imprisoned until death. After his death, a "history live broadcast room" suddenly came to broadcast to my father, brothers and the world. If I were the emperor, how would all the nations of Great Xia come to court? And how the emperor they now choose would lead the prosperous age to destruction step by step.