Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village Into the Strongest Fortified City (Manga) Vol. 6 (manga)

After giving the neighboring villagers haven from their tyrannical lord and undertaking the construction of new dungeon facilities, Van is finally starting to see the signs of the easygoing life he yearns for! Even better, thanks to his victory over the forest dragon, he now holds the title of baron, a position that allows him to reform his territory without interruption from his family. As Van continues to expand and improve his land, his accomplishments also spur Arte, who has spent her whole life looking down on her own magic, into action. What new adventures await Van and his ever-growing list of allies?!