Slutarn

Slutarn (スルターン) is a non-humanoid nation that exists in the New World.

Background
Slutarn is one of the many nations that are situated in the Dolor Desert.

The Vampire Princess of the Lost Country Arc
Slutarn is briefly mentioned as one of a few points of interest in the Dolor Desert.

Culture
Slutarn is stated to be a small nation, inhabited by genies.

Great Kingdom of the Pabilsag
The Great Kingdom of the Pabilsag is a neighboring state that also exists in the Dolor Desert.

Trivia

 * This is the first instance of a nation of genies in the New World.