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.

Shy-La was the only Hellfire wyvern who managed to avoid being abandoned by Mazotu. The other dragons hid her as an egg, and when she finally hatched, Mazotu couldn't find the guts to kill her. Instead, Mazotu bossed her around, afraid that she might overpower him if he didn't show her he was the boss.

After a long time, the two of them became close, and now they are a couple. Mazotu denies it when asked though.