Undine Dragons are named for the water spirits with which they share territory. They have close relationships with these spirits, and are able to communicate with them. In exchange for protection and respect of their mutual freshwater homes, laid eggs are often protected by a blessing. This blessing stays with the dragon into adulthood, and with it they gain potent magical abilities. Sometimes when an Undine Dragon becomes very upset, the ground at their feet may frost over or begin to steam. They have also been observed to manipulate water directly, rerouting raindrops or creating puddles from groundwater. Undine Dragons always live near forest pools, streams, or waterfalls. Both genders take equal part in the raising of young and are very good parents—though they may not remain mated after the offspring are grown.

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.

Squirtle was the first of many Undine to hatch in the AnselaJonla flock. This newly discovered breed soon settled into flock's territories, where they share the waterways and bodies of still water with the already established Water, Shallow Water, Water Walker, and Waterhorse dragons, as well as the elusive water spirits for whom the breed is named.

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A wanderer at heart, Squirtle travelled all over Galsreim as a young adult. One day, while flying near the eastern coast, she was blown out to sea by a massive twisting storm, and while searching for land to shelter on, she discovered a mountainous island chain. She became fascinated by the people who lived there, and settled in one of their mountain lakes. She adopted the surname of "Mizukami", the local name for water spirits.

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This surname was quickly adopted by all the Undines that resided in AnselaJonla territory, and Undines regularly fly out to the islands to visit.