Great Ming: The Farming Prince Forced into Marriage by Xu Miaoyun

I transmigrated into the Great Ming Prince of Jin, Zhu Gang, and activated the sign-in farming System! While others fight over the succession and get caught in pointless infighting, I tend the palace's experimental fields and grow potatoes yielding three thousand jin per mu, solving the Great Ming's food shortage. Xu Miaoyun threatens me with a knife to force me into marriage for love. From then on, the good-for-nothing prince makes a comeback, builds flintlock rifles, sweeps across the northern deserts, and keeps the other princes firmly in check!