Red Dragons are similar to typical story book dragons. They shoot flames, can fly, etc. However, they aren’t evil creatures as depicted in myths and won’t go around raiding castles, killing knights, or kidnapping princesses. They live in a variety of habitats, from forests to coastlines to abandoned castles, usually in warm climates, and eat whatever living creatures they can find.

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.

The "big sister" of the Vocaloid Clan, Meiko is always willing to listen to one's problems and help them out whenever she has the chance. Although it is very rare that she gets angry, when she does do so, she can become a very scary dragon. When she's not too busy helping out humans and dragons with things, Meiko can usually be found telepathically singing a song, watching a nearby sunset, or talking with Haku, Miku, and Neru.