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.

Feille is an unusual Hellfire Wyvern. He was always unusual, even when he was an egg. He was found in a volcano where the flames had began to die and was close to his death when he finally hatched. Along with his nest-mate, a Night Glory Drake, they were healthy and lively hatchling and grew into healthy, yet strange, adults. Still unlike his kind, who usually prefer to mate with their own kind, or other dragons of "rare" stature, Feille fell in love with a simple, yet beautiful pillow dragon named Flufi. Soon enough, they had a beautiful egg, which took after it's mother, and was named after her. Little Flufi and Mama Flufi are Feille's life and he would never think of leaving them. In many ways, Feille is strange, and he loves every minute of it