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.

Aoi Nagare Chisanaike, meaning Blue Flow of the Small Pond Family, is mate to Sentotaki and a guardian to the small lake in which she lives. She and her mate are well known for being the protectors of the blessed lake, which many a priest come to meditate at, and although Sentotaki is rather lenient with the priest, Aoi is well known to always keeping a close watch on them.