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.

Meyhja is a volatile and violent dragon, and probably would have been even more dangerous if he was born into the wild. Thanks to his Master and the more mellow dragons in his misfit family, he's not nearly as menacing as he could be, but his nature still remains. While he respects those he is accustomed to, he can get very rough with them, to the point where it will actually turn into an all-out battle. The only thing that truly can calm him is his mate, Amroweg. Sometimes, he even gets rough with his Master, which has upset many of the dragons in his family. However, it is believed that he can be further calmed with a little bit more time with his Master. In battle, he is ruthless, and will not hesitate to rip a stranger's throat out, whether it be dragon or any other. Meyhja may be a bit of a scary one, but he is a fierce warrior, and will fight for what is most important to him.