Swallowtail Dragons are graceful and quick flyers, much like their namesake bird. They are capable of precise aerial acrobatics, and can reach very high altitudes. Because of this, humans observing these dragons are often astonished at how large they are when confronted up close. A Swallowtail’s diet consists of insects and small mammals plentiful in temperate forests. These dragons are also made remarkable by their paper-thin wing membranes, which allow light to pass through, creating an astonishing effect on starry nights.

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.

Whasaryuu was named quite accidentally.  His parents' names both ended with the suffix "ryuu," and his owner wondered out loud what a "ryuu" was.  Young Whasaryuu quite liked the sound and refused to answer to anything else. He is a bit of a loser and most of the other dragons laugh at him behind his back, but he's pretty oblivious to it.  When he does hear anything they say about him he reasons that they're pretty much all losers too so it's okay.  He has a strange addiction to finding and destroying pianos.