Storm Dragons are the masters of the skies. They are excellent fliers and land only to rest and eat. In addition, they have full control of the weather. They are very hot-tempered and easily angered. They will attack any human that bothers them, conjuring strong winds and dangerous lightning.

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.

If the dragons of Sunfeathers' cave had a vote to decide who was the strangest one among them, Minamimoto would easily be in the top three. He seems to be unable to go more than two sentences without inserting some form of math terminology (with zetta being one of his favorite words). He also loves to make large "artful" stacks of garbage, which has led to the other dragons calling him the Grim Heaper (Minamimoto's kind of a mouthful, you know). Mostly the other dragons just avoid him because of his unpredictability, and leave him to his strange, math-loving, trash-stacking life. From what anyone can tell, he prefers it that way.