Dressed as a Silly Prince of Daxia, I Insist That a Deer Is a Horse

Travel through time and become a stupid prince, pretending to be stupid for ten years. Once there were deer and horses in the court, the emperor personally named him the King of Jiangnan. Training troops to conquer Jinghai, recruiting talents, killing Japanese pirates, and putting down rebellions - let's see how I can dominate the world in the future.