Aria dragons are a brightly-colored and sprightly breed, perhaps most adored for their lyric calls. Their song-like melodies fill the areas they inhabit; their coos resemble those of birds, only more elegant and refined. They have fairly strong magical capabilities, but tend to reserve these strengths for last-minute defense, choosing to live their lives in simple peace. Arias, sticking to the tropics, typically live quite far from human settlements, giving rise to the previously held belief that they had gone extinct.

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.

Sweet, but vicious when it comes to her enemies, Yukarina is not a force to be reckoned with. While it's true that her mate, Nightfire Chaos, does all the hunting, Yukarina does not just sit around when her family is attacked. Threatening her hatchlings Koh, Cynda, Tennin, Emiri, Shirau, Khatan and Arumei is the easiest way to provoke her, but it is not recommended. She is as protective of her family and will not, if she can help it, let any harm come to any of them.