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.

Kouta is pretty peaceful, but he fights when angered or enraged. He protects the hatchlings and eggs during the day, but during the night he goes to his mother's grave. He vows to get revenge on the thing that killed his mother and he searches for evidence of who or what killed her. He is tolerant of the other dragons, but the one he really loves is Green Leaf of White Winter and their child Terra. He now also cares for the zombified Sky of Dark Night with Green Leaf.