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.

Yomi is usually a shy and reclusive dragon who prefers to stay by the side of his best friend, Victor, at all times. Believing that the living may try to kick him out of the clan if he shows his face, Yomi finds that being around the living makes him anxious and paranoid. Because of this odd behavior, most of the living dragons have become suspicious of him and, in Blitzstrahl's case, murderous. However, sometimes when Victor and Sangsue are overburdened with hatchlings wanting to play, Yomi is happy to help. Many of the resident dragons who have seen this vampire playing with the hatchlings have grown suspicious of Yomi's motives. The matron, Ragnarosa, is not suspicious in the least. She believes that his heart is slowly beginning to ease open, yet she does find something odd about Yomi. Something she just can't put her claw on.