Fun Territory Defense By The Optimistic Lord

A man reincarnated as an aristocratic boy, Van, grows up to be treated as a child prodigy after all his efforts, but when he is known as the owner of “production magic”, he is immediately driven to the lord of a frontier village. However, the sorcery that was called useless is truly out of the standard because it can produce anything as long as you have the materials. With the knowledge of his previous life and cheat magic, a small poor village grows into a huge city――!