Green Dragons are also sometimes called “earth” dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

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.

Mikoumi-chan as a green dragon can be also called an "earth" dragon due to power over earth. She usually lives deep within caves sometimes moving when restless. She is capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground to intimidate her opponent. Miko can be a formidable dragoness at times, but is really a soft and gently dragon who craves for offspring.