Waterhorse Dragons received their name due to their horse-like physique and endearing behavior. They are capable of surviving out of water, and when on land their skin secretes a gelatinous goo to retain moisture. However, their large paddle feet are better suited for swimming, and waterhorse dragons tend to move very awkwardly when on land. Waterhorses are very friendly dragons and enjoy playing with humans.

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.

Bubbles is the founder of a clan of his kin, that is devoted to fun and joy. Barged between several Deep Sea dragon clans, they remain neutral throughout the conflict in the local waters and beyond. She shows an example to all when trying to communicate with humans. They usually play a game called "Water Ball" with each other and humans to pass the time. Bubbles is a paragon personality and can cope with almost any sudden situation, since she can be very persuasive and is a quick thinker.