Dark green dragons, once they mature, appear to become an entirely different species. However, this isn’t true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.

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.

Kusahime thinks of herself as a princess, and in order to "keep up appearances", she rearranges her vines at least once a week. Sometimes her vines will snake outwards in spirals, sometimes she'll position them sticking up like walls, and other times she'll keep most of them above ground, weaving them throughout the remains of her past meals. The most vicious Dark Green Dragon in the clan, Kusahime is given whatever delicacies she wants to eat in exchange for keeping her distance from the other dragons.