An ordinary person came to the Southern Song Dynasty unexpectedly. Seeing that the court he was in was hopeless, and thinking about the inhumane massacre in Mongolia in the future, he chose to save the tens of millions of people who were about to be massacred. However, he had no special skills and could only rely on the only things he had on hand to start the road to save the world.
PS: There is no system, no technology will be used randomly, no harem, and it will be based on the historical context.
