Ember Dragons have a great affinity for hot environments. While they themselves are not hot to the touch, their tendency to lurk amongst smoldering ashes has caused many to believe they are fire-starters. Their dully glowing markings serve many purposes: acting as a means of identification between individuals, as an important part of mating displays, and as a way of showing aggression. The long, low build of the breed makes them ungainly in flight, and the thick fleshy membranes of their wings hinder them further. As such, it is rare to see an Ember Dragon take to the air. Ember Dragons are also not particularly sociable; females tend to be defensive, whereas males are more aggressive. Once they have settled with a particular group of dragons, Ember Dragons are incredibly loyal and will defend their pack by any means possible.

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.

Kohaku of Hell was found on the night of Hallow's Eve as a mere hatchling. While her full name is Kohaku of Hell, her clan and her close friends call her Kohaku. While she is one of the quietest dragons in her clan, she is also the most fiercely loyal to it. It is rumored that she has a dark past. Some say that the night she was found, she was taken away to a desolate place, doomed to be the subject of an experiment no dragon had ever survived, and that she miraculously escaped with aid from a mysterious stranger. Others say that she was abandoned near a volcano and forced to live alone from the moment of her birth, but was rescued by an unknown dragon. While rumors surround her, only one other dragon knows the truth of her past.