Daydream Dragons are the hosts of daydreams and fantasies. They spend the majority of their time sitting on clouds, dropping daydreams down into the minds of people passing by. Humans who live near Daydream Dragons must be especially careful not to let their thoughts wander, or they could end up spending hours or even days in a trance-like waking dream state.

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.

Drak Mrak has made his home near a human village, a fair distance from the Thoiris clan's territories. As the villagers' knowledge of dragon breeds is at best very limited, and most weren't originally aware that Daydreams are a peaceful species, Mrak's arrival inspired panic at first. However, he has since resolved this misunderstanding and made friends quickly. Now, the people are generally happy to see Mrak, especially the children who often come to play with him. His name means "Cloud the Dragon", and while it's not particularly creative, it was given to him by one of the villagers and it stuck over time.