Royal Blue dragons are a nocturnal breed who prefer to live high in the mountains near slow-moving water that reflects the night sky. Although quite capable of defending themselves, they are peaceful by nature and will avoid a fight whenever possible.

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.

Radio lives his life in a constant flow of 'apropos'. Whatever someone tells him, whatever he sees reminds him of something else. This makes it very confusing to converse with him, especially as he seems to remember stuff that hasn't happened yet—at least not to him.

The most popular theory among the Whites and Magis is that Radio is tuned into the telepathy of all dragons of the clan subconsciously and can't distinguish between his and everyone else's memories.