The Lord is backed by a technology tycoon

Owen is just a small Lord in a border town. Until a technology tycoon from another world came to him, all this changed contact with advanced ideas made him realize that the feudal aristocratic system hindered social development in order to obtain future technology, he tried to combine with magic to develop localized high technology the nobles regarded him as a thorn in the eye, so he had to develop military industry to deal with knights and magicians "originally, they only wanted to farm and develop their territory, but they wanted to make trouble, so they had no choice but to take all their territory." Owen said reluctantly PS: this book is also known as "this little Lord holds the thigh of a technology tycoon" and "magic is the first productivity"