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. Obidar are a curious and shy variety of Xenowyrm that make their home in forests. Their bark-like scales, the polypores clinging to their bodies, and the vibrant foliage growing from them act as natural camouflage. Their desire to investigate travelers in their domain leads them to often sneak unseen near or slightly into camps at night. If spotted, they are shy but friendly, and many that wander the woods are grateful for the watchful protection of these gentle Wyrms.

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.

As part of Seven Questions University's Impractical department, Geoxeno studies himself. He has always wondered why, as a creature with magic aligned with dirt and soil, he has polyphores on his body. The plants should be life-aligned, like the gaiaxenos' vines and dark greens' dragon-grass, and yet he has no power over life mana. If anything, obidarxenos should have crystals sprouting from among their scales. Unfortunately, this magic refuses to follow any logic, and a logical dragon like Geoxeno must cope. He does this by studying, dedicating his life to solving a question that is completely useless, as nothing he might discover can be applied to anything. He is sometimes considered the second-most boring dragon on campus, after xBORe.