Far and away one of the most enigmatic of dragon breeds, the Sinomorph is shrouded in near-complete mystery. While the exact conditions that herald its arrival are not certain, it is said to only appear when called upon by all six Zyumorphs. Record of its existence may be limited to folklore and ancient legends, but recent sightings seem to suggest this storybook behemoth may truly walk the lands of Valkemare. If the stories of the past are to be trusted, its appearance serves as a beacon of light in the face of looming calamity.

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.

Zero Mint is quite gentle and unusually shy for such a powerful dragon. She was the first member to join the "Zero Group", a group of Sinomorphs founded and led by Zero Sinaasappel, dedicated to letting Zero bad things happen to the dragons in their realm.

She was named for the pleasant, cool scent that is the first thing anyone notices about her—it doesn't smell like anything specific, but it most closely resembles mint. She also seems to particularly care about Mint dragons, but whether that's because of the name or because they're so small and need protection... nobody knows.