The Game Master Has Logged In to Another World: Volume 3

With the war against the Granfang Empire finally over, Masaki enjoys some well-earned rest before turning his attention to the development of his new territory. However, when he and Shou discover that an illegal slave market run by a fellow otherworlder is targeting Adel and Colona, they set out to infiltrate the slaver’s ship. Will their party succeed in defeating the Phantom Blau’s captain, rescuing the slaves trapped aboard, and destroying the potent curse the otherworlder draws his power from?

[From J-Novel Club]