C183 Remodeling the solar system

I said, "What conversion?"

The butler swallowed and said, "Aren't you going to drag Earth over here? "Then we will have to use another planet to exchange places with it. Demonstar is a useless planet with no life, so it's just right for us to swap positions with two planets."

If that's the case, I nodded and pulled out Garfield. "Come on, let's turn into a spaceship