Poor Lord

What should I do if I suddenly travel to ancient times and I don't have enough to eat? What, the man is about to be beaten up, and the government has given him a beautiful wife, who must give birth to a child next year? What, foreigners are coming to invade the Central Plains again? ·…… It doesn't matter. If you learn mathematics, physics and chemistry well, you won't be afraid of traveling around the world! *The original cavalry was unstoppable? The Japanese pirate ship was indestructible? Joke! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.