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.

The first dragon to hatch in Irou's care, Hiraga was believed to be a Male because of her boyish nature. She seems to like to help others, as seen when she was helping a wounded stray dragon. She loves to fly high and fast, and is ready for battle anytime, if she has to. She seems to be motherly, helping Irou's other hatchlings, being almost like their mother.

She currently seeks a mate, but will not abandon her 'family' in seeking one.