Hellfire Wyverns are so named for their foul tempers and fiery visages. Their social structure places all females above all males, due to superior physical characteristics and violent dispositions. Forced subservience of the males causes them to become vicious, petty, antisocial, and passive-aggressive compared to the aggressive and social females. However, orphaned hatchlings raised by foster parents of another species can develop surprisingly even tempers and mellow dispositions, proving that their defining unpleasant nature is, in fact, a learned behavior.

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.

Lilysfire has an angry disposition. She's prone to random spurts of anger and her moods are constantly in a pendulum-like motion. When speaking with other dragons, she tends to be rude and snappish. She's not afraid to display her wonderful claws and her wicked fangs. When in an argument or fight, Lilysfire would end her retort with a loud burst of fire and menacing growls. Thus, many of her opponents would never have a comeback. Her volatile nature repelled other dragons and humans ran away in fright from her snarls and glares.

However, one day while relaxing in a field of lilies, she met the sweetest dragon she has ever known—Honeyfire. He charmed and soothed her angry and rough demeanor. While she still retains her mood swings and fiery anger, she becomes docile and pleasant in the presence of Honeyfire.