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.

A true forest dragon at heart, Mori Kodomo (Forest Child) loves her home in the thick forest of her birthplace. She often thinks of herself as her home's guardian, protecting it from hunters, rampaging dragons, anything that shouldn't be there. She was a real free spirit until she met Suijin Green, her mate. When they first met she made it her mission to get him to loosen up as he was infamous among his clan as being very uptight and quiet, and though she succeeded to a point, she loves him how he is. She and his son from his first mate, Kinko Dreams, get along very well as they have almost the same personality and can often be found in the forest's lakes practicing their water abilities.