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.

Kagami is a soft-spoken and mostly silent dragon. While she isn't a loner by any rate, she rarely communicate with others verbally although her intentions are always easy to understand through her body language and eye signal. Despite being the same breed, her ability differ from Kokoro significantly: While Kokoro's shield can withstand magical and physical attack, Kagami's shield is able to bounce most medium to high level magical attacks back toward the attacker but it is not as strong against physical attacks.