Happy Little Prince

As a literary young man in the new century, he was abducted by aliens? Then on the way back, he accidentally crashed on a certain planet and became a prince with a lot of troops. There was a mess left by a stupid father, and there was a mentally retarded old man causing trouble. There were treacherous ministers seizing power inside, and enemy countries looking at him outside. It didn't matter. As a good young man in the 21st century, this happened to be Shen Chen's stage.