MCU x Male Reader (The White Iron Man)

Born in 1920, Y/N L/N, a kid who was born with extreme knowledge, just like Tony Stark, had to live life rather hard than easy. He often used his knowledge rather childlike, as he didn't seem to know what was the best possible thing he could use it for. In 1939, he is drafted into the army to fight as a needed soldier in WW2. During his time there, he learned a lot of lessons about how to use his knowledge for a better future. After being captured in 1945 by the Japanese, he is held by them in their country and is continuously tortured. It is only here when Y/N realizes that he needs to use his knowledge correctly in order to defeat his foes. In August 1945, when the Americans drop the atomic bombs on Hiroshima and Nagasaki, he is taken and frozen, just like Steve Rogers. 70 years later he is defrosted in Nagasaki, Japan. He retains his memory and is extremely shocked as to where in the world he is. After Steve finds out that his friend from WW2 and the Howling Commandos is, indeed, alive and in Japan, he travels there to recruit him in a team called the Avengers. But what happens when Y/N meets Tony Stark and uses his knowledge to merge with his and create a suit made out of Iron.