Fire Gem Dragons are a colorful, flamboyant breed often found in hot climates, particularly around active volcanoes. Their broad tails store the flames they breathe, which are colored by the heavy amount of minerals in the water they drink. These dragons come in a variety of colors, and will collect shiny trinkets and stones that match their own coloration. Despite their hoarding tendencies, though, Fire Gem dragons are social and will often congregate in groups and show off their collections while fawning over the stones their friends and rivals have gathered, occasionally arranging trades.

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.

Found as a hatchling in the abandoned pile of the Cave, Kasenth grew up being a great scavenger. He enjoyed finding (or stealing) little blue trinkets he found, which he kept in a crevice somewhere at the back of the Cave. Unfortunately, a small cave-in caused the crevice to be lost in the rubble. Kasenth saw the entire cave-in happen, but his luck turned around when he was found and taken in by a human. He grew up to become "Kasenth the Hoarder" or simply, "The Gem Hoarder", and various other titles and nicknames he was given by his friends Wavashu and Carbon—Dioxide.