The Frontier Lord Begins with Zero Subjects (Manga): Tales of Blue Dias and the Onikin Alna: Volume 5 by Fuurou

The war with Princess Diane has come to a surprising end, and peace has returned to Nezrose. Still, a domain lord’s work is never done, and Dias and Alna must turn their attention to more mundane but equally pressing challenges. First, their growing economy presents a host of issues heralded by the arrival of a new yet oddly familiar merchant. Next, Dias has to figure out how to deal with the unintended consequences of his generosity to the dogkin. Finally, Dias faces his greatest challenge ever: a big-time wedding!