Magic and Swords and Steam Engines

Traveling through time is fun, but traveling back in time as an exiled prince is not so fun. He has neither the qualifications to practice magic nor the talent to practice swordsmanship. In this world where human races are showing weakness and alien races are everywhere, Ye Bai feels that he is under great pressure. "But fortunately, I have a system..." You are a master of swordsmanship, and I have a magic rail gun that can tear apart mountains and crack the ground with one shot. You have a strong physique, but I have magical armor that can defeat a hundred of you. Do you want to know about Gatling, the magic wizard with your strong magic and blue fire? "Sir, times have changed! But they have not completely changed." Ye Bai said this with Forbidden Magic in one hand and Magic Gatlin in the other. This is the story of a man from science and engineering struggling in a different world This book is also called "Is there anything wrong with me as I engage in technological revolution in a fantasy world?"