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. Gaia, despite their large size, are the lightest of all Xenowyrm subspecies. They possess the ability to use incredibly powerful life magic, though most of their efforts are concentrated; to them, nothing is more important than letting plant life thrive. Adult Gaia will use their magic to grow vegetation around themselves so they can spread it wherever they travel.

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.

Izon is very protective of his gardens, especially a special meadow he tends to personally each day. He gets easily upset when he sees others trample flowers, and has made a personal pact to grow two in the place of every crushed blossom he encounters when he travels away from his meadow. Others who encounter Izon are most likely to see him watching over a stretch of land covered in wildflowers, apparently just staring into space. Izon claims that he's listening to the sound of the flowers singing as they grow towards the sky.