Spotted Greenwings are relatively small nocturnal dragons. Easily recognizable by the fleshy appendages growing off of their head and rump, they are most commonly seen in forests at night, leaping and soaring from tree to tree. While generally social, spotted greenwings are very quiet and rarely make any sort of vocalization. Their bodies are unusually warm to the touch, though they are unable to breathe fire. Greenwings are voracious feeders and will consume nearly any living thing that they can fit in their mouths.

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.

Tsutanoha makes intricate murals in trees by carving channels through the bark and quickly pouring in liquid life mana. This activity originally started out as a way to help trees recover from being eaten by bugs, but Tsuta realized one day that he might as well make the carvings look pretty too. As he continued his work restoring portions of the forest, sometimes passersby on evening strolls would make suggestions for Tsuta's designs. The most common requests Tsuta receives are for couples' names enclosed in hearts, but on occasion he does get asked by children and hatchlings to draw silly faces on trees. Anyone who asks him to carve rude words or gestures gets chased out of the forest.