Nebula Dragons are nocturnal creatures. With the best eyesight to be found, they are often seen staring into space. Each dragon tends to observe a particular nebula and will eventually change their colors and patterns to match it. As the nebula changes over time, the dragon changes with it. The more intricate the design of the nebula, the better chance an individual has of attracting a mate. It is said that the markings on no two Nebula Dragons will be exactly the same.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Almost every Nebula dragon is colorful and dazzling to look at, as the night sky always is. But the particular Nebula dragon who sits under the roof of the cave instead of under the stars has no color. His name is Sobaru, and he is as dark as death because he is blind. Oddly enough, he has found a mate in an artistic Hellfire wyvern called Masarfa. She acts as his eyes in everyday life, very rarely leaving his side. You may think that Sobaru is angry at being blind, but he actually has no opinion on it. This is because he doesn't know what it's like to see, and therefore doesn't miss something he has no clue about. Although he is blind, Sobaru has a such a rich, low singing voice that Jarkazu, a pygmy dragon that composes songs, often calls him over to vocalize some of his works.