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.

Tsugu considers himself the best picnic planner in the entire family, and has spent years perfecting his "social art". During this time, he has accumulated hundreds of successful pre-planned food combinations to suit any picnic scenario; he has these plans written down in scrolls that he loans to family members who need advice. He has helped out dragons planning anything from a romantic picnic for two, to a seaside beach picnic for hatchlings, and even a semi-formal outdoor social gathering for the elder dragons.