Deep Sea Dragons, as their name suggests, spend most of their time in the darkest depths of the sea. They have a bioluminescent dorsal spine that serves to attract prey and communicate with their own kind. As with many deep sea animals, they generally eat whatever they can manage to bait. They rarely leave the ocean floor, surfacing only during breeding season. When they do choose to travel to the shallower depths, they avoid bright lights and will only come up far away from shore.

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.

Neptune is the least social dragon there is. He rarely surfaces if the rest location is by the sea and whenever he does he usually spooks the younger dragons. Neptune and his mate Charybdis never get involved with the matters of land dragons, instead they live a life of their own, avoiding the land dragons. Neptune is a strange dragon, for he can adapt himself to be able to swim in some shallow waters, but only if the water is murky. He is truly a mysterious dragon.