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.

When once Angel flew near the clouds, she dipped both her wings in them, to know how it feels like. Though there wasn't much feeling, maybe a little wetness, she felt somehow happy, playful. She saw a little girl and her mother running in the field below her. The girl screamed: "Mommy! Mommy! Look! There is an angel in the sky!" and the mother replied: "There aren't any angels with double tails darling". The little girl still running with the female dragon decided: "Then she is a double tailed angel!". Angel smiled and made a dead loop just for the little girl that gave her a name. An even bigger smile appeared on the little girl's face.