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.

Ur-Veleistos grew up a very friendly and gentle dragon, but everything changed when he fell in love with the cold and haughty Termanwe. In time, she revealed herself to be more cruel and manipulating than a wild hellfire wyvern. The relationship took a turn to the worse when they had their first children, as Termanwe neglected them and even attempted to abandon her own eggs. Ur-Veleistos has grown bitter and wrathful, but remains submissive, fearing that his consort might harm him or the hatchlings. He still hopes for the chance to get revenge on her for what she has done to him and his offspring.