Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village into the Strongest Fortified City (Light Novel) Vol. 5

OH BROTHER With the aid of the fortifications Van erected for them in the heart of enemy territory, Scuderia successfully takes down the Yelenettan border fort! Just to be sure Yelenetta never reclaims their captured outpost, Van decides to transform it into a Japanese-style castle. Problem is, a castle needs a lord—and Van has his own town to take care of. Enter Van’s older brother Murcia, freshly exiled by their father just as Van once was! Is this just the lucky break Van needs—or a sign of more family drama on the horizon? One way to find out!
Series Overview: Van, fourth son of a marquis, is just a toddler when he realizes he’s been reincarnated. Thanks to his literal lifetime of knowledge, he’s raised as a child prodigy—until his production magic manifests, and it’s the last thing his snooty mage family wants to see! His disappointed father banishes him to a podunk town on the verge of collapse, yet Van can only see the place’s potential. Can our hero’s bastion of battlements build a better life than battle magic ever could?!