Black Dragon Transit

It was obviously time travel, but he became a black dragon. He is obviously a black dragon, but he can do all kinds of magic. Although he could easily stand at the top of the world with these innate advantages, he still had to climb the unattainable technological tree. It was obvious that he could use traditional chemistry to allow his relatives to travel across the continent, but he still had to chase the illusory nuclear weapons. There is a soul from another world in the black dragon's body, and his ideal is - nuclear peace in the world! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.