Vampire Dragons are members of the undead. They sustain themselves by drinking the blood of others. It is said that they are only “alive” at night, and seem dead or asleep during the day, as they cannot endure sunlight for long periods of time. Vampire Dragons can only reproduce by changing the eggs of other dragons, puncturing the shell with their fangs and injecting venom that kills the baby inside.

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.

The same day Tenygore grew up he already wanted to taste the blood in his mouth and couldn't resist biting an egg. Though his owner's dragons were disgusted by the egg and threw it out, Tenygore knows they understood what had happened and he will forever be cast away from the normal dragons. Every time the dragons see him, they hide their hatchlings, glaring at him and he likes that. He is mostly a loner but likes spending time with another vampire dragon, Paquwy, who never judged him for his bloodthirsty ways because he thinks that he will soon bite a defenseless egg and turn into a real vampire dragon.

Tenygore loves being a vampire and would never want to be a dragon of an another breed. He says that only vampire dragons taste the true meaning of life, because they can alter it.