Black Dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

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.

Occultess is the alpha female of her cave and Satan's mate. Nobody knows where she comes from or who are her parents. Her past is marked by the mystery. Occultess is a experienced magic user, from black magic to white magic used by the white dragons.  Satan was charmed by her beauty and in few hours they mated.

After the mate she meets Belzebub, Satan's brother. They have known each other for a very long time. But they can't remember their past or the place where they come from. Their past is under the mist of mystery and unknown. But it doesn't seems to bother them, as they all continue to protect the cave.