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.

0mgCU works as a plumber in Nworset. He loves copper piping, so when clients ask for it specifically, he often ecstatically says, "Oh my GoN, copper!" He begrudgingly works with ceramic pipes and refuses to use lead. He has a terrible sense of time. Often, when hanging out with a friend or browsing through a bookstore, he suddenly checks his pocket chronomagical timepiece and blurts out, "Oh my GoN, I'm late!" then apologises profusely and sprints off to whatever appointment he is about to miss. One time he was in the Madder Jungle on vacation visiting with an avatar of change when he realised he had to get back to the Dorsal Inn to check out of his room and catch the five o' clock teleportation session home. The avatar, annoyed by 0mgCU's sudden departure, transformed him into a rabbit. An immature human started following him as he hopped as fast as he could, repeating, "I'm late! I'm late!"