Guardian Dragons have large shields on the end of their tails. Although the shields appear to be heavy, they are light, yet nearly unbreakable. Guardian Dragons use their tail-shields, as well as their wings, to deflect attacks and protect others. Often, they will guard the eggs and hatchlings of a nest while others are away. They are generally peaceful, and will not retaliate unless necessary. They have no need to forage or hunt, as they are fed by those they protect.

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.

Focused on her duty, Lily is standoffish. She feels that socializing would be a distraction. This dedication to her duty to Nadat's cave, though, means that Lily has few friends. She often feels lonely because of this. Sure, Katen, the pink flirt, and Jiraiya, the paper storyteller, make attempts to cheer her up, but she always feels that they're after things other than friendship. Recently she's come to accept the loneliness. She's not happy with it, but Lily believes that it's the price that must be paid for being the best defender in her cave.