Originating from a single species that thrived in ancient times, Xenowyrms have become an incredibly diverse breed whose appearances vary depending on their habitats. Each Xenowyrm subspecies is heavily reliant on the power of different types of mana, making them powerful magic users. Aso dwell in the frigid waters of the far north and south, and are occasionally spotted near tundra shores and ice floes. Their isolated homes of choice suit their tendencies towards small family groups or being solitary. Their bodies are so cold they nearly instantly freeze anything they come in contact with, be it water or living creature. Over time, the ice that breaks off their bodies as they move forms into glaciers they use as lairs. The older an Aso is, the larger their frozen abode.

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.

Garasu is among the youngest of his family group, and has always been a little insecure about how small his lair is in comparison to those of his older Aso kin. Nevertheless, he knows that he and his lair won't grow any faster if he just mopes around, so he's started to look for ways he can make his home, smaller though it may be, into a more impressive-looking space. Every day, Garasu will sit for a few hours over a lake near his lair, slowly inching his way forward over the water and waiting for it to freeze over as he goes. He's used this method to create spiraling bridges of ice across the surface of the water, strong enough to hold his weight if he's patient enough. Garasu hopes that one day he can start incorporating liquid mana into his designs, as it is his dream to live in a glacier carved with beautiful rivers of mana and ice.