Cassare Dragons are known for their magic-deadening abilities. Though not a conscious ability, a large field surrounds the dragon through which magic is passively nullified. This field is strongest near the dragon itself, and falls off with distance. The absence of magic often makes other creatures avoid them, though some will have the opposite reaction and seek refuge instead. It has also caused them to be hunted, as though the field is severely weakened once dead, their bones and scales retain some of the effect. Possessing such an item is considered a necessity by those who expect to face hostile magic.

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.

Nobody knows where Kiingowil Ilfis came from or why she calls herself "nobody," but many dragons and humans have her to thank for their lives. One fateful afternoon, Ti Kiri Itmen, a ferocious, though not terribly clever Desipis dragon, left his home and went on a violent rampage through several highly populated villages, killing many and destroying enough homes that he was labeled an unnatural disaster. In the midst of the chaos, a mysterious Cassare appeared and confronted Ti Kiri Itmen, stopping the beast in his tracks with her magic-nullifying effects. While the Desipis was confused and weakened by Ilfis's very presence, Ilfis swiftly herded him away from populated areas and planted him securely in a mountain valley, where she still keeps a tight rein on him, preventing him from setting foot out of the valley and sowing more destruction.