Mobile Fortress Saratoga ~ The Silver-Peak Sword Princess Became My Servant.

In the desert nation of Escalis-Mimil, where people live in mobile fortress cities, a boy named Nanashi, despised as a "desert worm" by the people of the desert, infiltrates the fortress city of Saratoga alone to rescue his adopted sister Kisaragi, who has been kidnapped. There, by chance, he saves the life of the Silver Peak Sword Princess, proclaimed the strongest of the current age, and becomes her master. The strongest sword princess and the boy who became her master are drawn into a power struggle between fortress cities. Volume 1 from "Saga Forest" is now on sale! Volume 2 scheduled for release on April 15, 2017!