Frilled Dragons are smaller than most other breeds, but when threatened, they stretch out their wings and frills to appear larger. They generally do not like to fight and prefer hiding to confrontation. Frilled dragons live in small groups and often band together to scare off potential threats. Males also use their frills as a way to attract mates, with those displaying the “best” frills being more likely to breed.

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.

Joey one of the last Frills' name, or Joey for short, says it all. The Frills may soon become infertile and no longer be caught in the main cave. He has only seen one adult member of his kind. That dragon is his own mother, Marie one of the last Frills. Joey is very shy, likes to show off but is easily frightened. This is why he is often the subject of Dark Guardian of the Night's practical jokes.