Great Ming: I Want to Slack Off, So Why Are You Making Me Emperor?

I transmigrated to the Ming Dynasty. It would have been fine if I'd transmigrated as a famous historical figure, but I ended up as a nobody! Zhu Song, Zhu Yuanzhang's twentieth son, was beaten to death at a young age after the Jingnan Campaign, according to history. That won't do. I need to go to my fief, the poorest place in Liaodong. If I can't beat them, I can at least hide from them! What? Fourth Brother, the Prince of Yan, wants me to join his rebellion? Grandson of the emperor Zhu Yunwen wants me too? He wants me to raise troops against the Prince of Yan? Father wants me as well? He wants me to become emperor? But all I want is to keep my head down!