Expert from a Nerd

What happens when a normal dull boy's brain get cramped with memories out of nowhere with no resemblance of his time. Memories that changes his perspective of the whole world and how will it affects the future. Will these memories brings boon for him and his world or is a sign towards near apocalypse. Be tuned in to experience our protagonist journey. note: This is my First work go easy on me for any or many mistakes i make