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.

Olypsee is a good friend of Clarice Brightfire, and ever since they hatched from their eggs they have been friends. They might be seen as soul sisters, both being just as powerful as one another.

None the less, their personality is not alike, and Olypsee is clearly a calm and friendly dragoness, and enjoys being around other dragons. In that way, she's the complete opposite of her soul sister. That does not change their friendship though, even though certain conflicts may surface.