2 results
Fushi no Kami: Rebuilding Civilization Starts With a Village
Fushi no Kami: Henkyou kara Hajimeru Bunmei Saiseiki· フシノカミ~辺境から始める文明再生記~
manga

When the civilizations of yesteryear fade from memory and become fanciful fantasy, the only evidence of their existence...are books. Ash, a young boy living in a remote farming village, holds a secret—he possesses memories of a distant and more bountiful past life. Days of toiling in the fields have given rise to a burning desire: to bring more enjoyment to the everyday doldrum of his dreary present day! And while books may be the answer, Ash...can’t actually read! But where there is a will, there is a way. Join Ash as he battles illiteracy and sets his sights on a better life! (Source: J-Novel Club)

Fushi no Kami: Rebuilding Civilization Starts With a Village
Fushi no Kami: Henkyou kara Hajimeru Bunmei Saiseiki· フシノカミ ~辺境から始める文明再生記~
novel

Ash is an 8-year-old boy with apparent past-life memories, who lives in a remote deserted village. As he remembers leading a bountiful life, he cannot bear living in a world akin to the Dark Ages, where not even the internal combustion engine exists. For that reason, he needs to consult books containing knowledge from a highly developed ancient culture, that is said to have existed far in the past. This is only the beginning of story about a young boy who sets out to revolutionize the world in order to rebuild civilization and achieve his ideal life! (Source: J-Novel Club)