When Water Dragons mature, they lose the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

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.

Rena Sagasso Renaissance is a water dragon. She is very passionate and witty, though she rarely ever volunteers in conversations and prefers to spend her time doing things, not talking about things. Rena usually remains silent, and she has a strange dialect (most dragons agree she is foreign), which contributes to her lack of communication. She, however, does converse very eloquently when she actually talks, and many dragons enjoy her company and rare conversations. Rena is proud of her lineage and name, but many dragons have a hard time pronouncing it, so she merely lets them call her 'Rena' or 'Miss Sagasso'.