Shallow Water Dragons are found in tropical regions where the water is warm. They use their magic to hunt, using bubbles to capture small fish and animals. Their large, webbed feet make them excellent swimmers and they are able to move at very high speeds. Due to their bright color, these dragons are easily spotted in the lagoons where they live.

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.

Mo'o grew up with a Water dragon by the name of Waka. Their parents were close, so they're practically brothers. Though Mo'o typically keeps to himself and takes massive measures of precautions, Waka is the opposite and this could sometimes irritates Mo'o; however, Mo'o just winds up getting dragged into Waka's shenanigans. Waka dragged Mo'o into becoming Kauhuhu's (the famous shark tamer) guardians. Even Mo'o can't argue that he doesn't regret becoming friends with the shark tamer.

One day, a man entered their cave that the three lived in, and before Mo'o could send him off, Kauhuhu came home in a fit of anger by the presence of a stranger in the cave. However, the man convinced Kauhuhu not to kill him, but the chief he wished to take revenge upon for killing his two sons. Mo'o witnessed the power of Kauhuhu when he summoned a storm that flooded the land and washed the chief and his followers into the bay, into the jaws of his man-eating sharks.