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.

Dakuochi Hoshichi, meaning "Dark Fallen Star Blood", is the missing child of Tsuchibokori Niji who disappeared many years ago. He is now a child of Hoshimi Chiochi, and not only that, he is the first child bitten by his mother. After the sudden discovery of his mother and the cave, he was quick to attack the discoverers. However, he seemed a little hesitant to go outside the cave with his mother and her other children, seeming to prefer the dark wet cave over the fresh cool air of the outside.  His name was, according to his father, going to be Nabe.