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.

Happiny is extremely caring towards those she deems as friends, to the point of getting incredibly upset when she sees a friend deliberately put themselves in harm's way. Her feelings are explained by her loss of all family since she was a kid. Now, she feels that the friends she has made in the cave are her family. She can be quick tempered and most of her friends are quick to make sure they don't upset her.