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.

Despite her name, Tempest is actually very cool-tempered. The reason she was named so was that she was hatched on a stormy summer morning. Since the hatching nest is usually placed near the mouth of the cave to be nearer to the warm sun, and it was raining and thundering heavily, her egg had to be moved farther back in the cave. As she was moved, a bolt of lightning suddenly struck just outside the cave, causing the dragon carrying her to jump and lose his grip on her egg. Luckily, she was caught just in time by Ira, one of the elder dragons, who kept her egg warm until she hatched a few hours later. Tempest considers Ira her adoptive father, and Fiammetta, another Hellfire wyvernness, her adoptive sister.