First of all, it must be mentioned that Ernest often referred to the term "Lamania."
This is the name of an ancient kingdom located in the Ignis Sky Realm, encompassing what is now the City of Crafts and the islands near the Makena Island Country. It was once one of the most advanced nations in this aerial realm.
Lamania is said to have had numerous connections with the former Speriel Empire. This kingdom inherited the knowledge and culture of Speriel, as well as their exquisite craftsmanship in production, so high-tier artisans and artists were frequent, and due to its presence in a peaceful region, Lamania's adventurers and military were not very developed.
In some of Ernest's journals from his middle and older years, a "band of barbarians" was mentioned as being active in the southwest region of the Ignis Sky Realm, seeming to grow increasingly powerful.
