I Rely on Future Technology to Build the Great Powers of the Universe

Yang Fan traveled to a parallel world, when the mountains and rivers were broken, and the great powers were around! With a three-thousand-year interstellar technology library, he disguises himself as a miracle doctor and lurks in troubled times! Implant a mechanical heart and transform into an absolutely loyal No. 1 Bodyguard! Wounded soldiers and refugees? Nano-repair + bone strengthening to create an invulnerable transformation army! Tank fighter? In the face of future technology, it is nothing but scrap metal! From cleaning up strongholds to sweeping the battlefield, from unifying China to heading towards the stars! When alien civilization comes to earth, Yang Fan has already led mankind to create a galactic empire! "I will bring peace to this troubled world! I will rule this universe!"