What will happen when an black guy got summoning to another world. Well, What will our African-American do with his summoning powers? Easy, He must live in this new world & new life in his adventures. The Kingdoms and Empires will soon react to his appearance.

President Y/N was a 170 year old boy who doesn't age, and his a 17th President of the United States of America. but in 2020, A gate opens in new York city and out come out was roman-like army attacking his people, rape and kidnap them as slaves. Y/N doesn't like that, he and his german friend F/N declared war on the empire. This will shock JSDF and the rest of their world. (Note: I did not own gate fanfic)

A young lazy boy was just doing his daily routine in his house, daydreaming about getting out of poverty. With a dream of earning money without working so that he could finally do his hobby of inventing random things. So what would happen if we send him into a fantasy world for him to rule with the power of a country building system? Not by Truck-kun, but by a nuclear explosion? Come and find out! ----- PS: This story is NOT a fanfiction, this is an original story but with crossovers from other similar or different stories, be it novels, mangas, or animes. This is also my first story so expect the "story style" to be different from other stories. Most photos are not mine and I give their creators their respective credits. ----- More: Updated the title and cover of the story from "Building the Most Advanced Civilization in Another World" to "The Pandora's Ruler - The Mechanical Revolution in a Fantasy World" as the story is not going to continue the supposed track and will have more interesting and different scenarios and stories from what was originally planned.

It has been over Thirty Five years since the end of the Second World War and with it Germany's defeat in the bloodiest conflict in history. In spite of being broken, battered, divided, and threatened with Nuclear Annihilation, the German Eagle soared through the clouds as it enjoyed prosperity and peace for the first time since the inception of a unified German state. That would all change however when the Empire attacked. Left reeling; the German Eagle would exact justice on those that wronged her and her Allies.