Mint colored dragons are the most peaceful of all dragons; they only eat plants unless they scavenge meat from an already dead animal. They also have no ways to attack others or defend themselves. They are much smaller than other forms of dragons since they only double in size when they mature. Mint dragons are unable to use magic and cannot fly since they lack wings. Their looks have given rise to the common insult of calling dragons “large lizards.”

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.

Agna Lenis doesn't remember her parents, who must also be weak Mint dragons like her. All what she remembers is being raised by the Dark Sun, a criminal dragon group, as a servant. The stronger dragons always order her around and she is looked down upon by most. However, Lenis is contented with her life. She knows that without any power or strength she will not be able to survive outside the Dark Sun for long. The protection of other dragons is precious to her, even if it means servitude.

The family name 'Agna', which mean 'Lamb', is used in her clan for all Mints. Her name 'Lenis', which means 'gentle and smooth', shows how the clan dragons think she should be. Of all the seasons, Lenis loves autumn and its dragons most because autumn dragons are mostly gentle and nice, even to a Mint. Not only that, they carry such a glorious appearance that Lenis can't help to stare at them all day long in her little free time.