The Doctor is In! 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?!

GOING BALLISTIC!Van is hard at work using his past-life knowledge and production magic to enhance his little hamlet in exile. This time around, he's built some beefy ballistae and blasted a forest dragon! Soon the king himself is swinging by for an impromptu royal visit, and a newly discovered dungeon has adventurers flooding in. With all this hustle and bustle revitalizing the village, there's no way things could take a turn for the worse...right?!

ASSUMING CONTROL Van's carefree days of construction are numbered now that the neighboring kingdom has come to conquer. Once considered useless, his production magic arms his country's troops against the invasion! Meanwhile, one of Van's companions is horrified to discover that the enemy has set their sights on her hometown. Does his fellow magical misfit stand a chance against wyverns and explosives with the puppetry skills she so detests?

WAR GAMESVan and Arte have little time to enjoy their hard-won peace, as the war with Yelenetta continues and the king calls on Van's genius yet again. Ordered to build temporary fortifications for an army on the move, Van ends up constructing an entire fortress in the middle of the battlefield! But his exploits are making him enemies among the other nobles, who begin to plot against him. Will their jealousy be Van's downfall—or will his newly constructed base hold strong?

OF FATHERS AND FORTS Things look grim for Scuderia as their long-time foe Yelenetta establishes an alliance with the United Nations of Shelbia. Following a tip from some merchants, Van makes his way to the fortress of Centena on the southern border—where he finds none other than his father Marquess Jalpa Fertio, fighting a losing battle against Shelbia! Can Van and his friends turn the tide? And if they save daddy dearest from his plight, can they escape being pressganged into the counterattack that follows?!