Ridgewing Dragons live just below the snow level on the upper slopes of mountains. They are a friendly, playful breed and enjoy dancing in wind currents near their homes or plummeting down into valleys from great heights. Their wings, by far their most striking feature, grow in fin-like ridges along their backs. While their bodies lack markings to blend better with their surroundings, a ridgewing’s wings have bright markings in the colors of the flowers that grow in their mountain habitat. Occasionally different-colored individuals can be found, but they are rare because their striking coloring offers little protection.

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.

Left on its own, Reau's egg was found by the Castle Master and brought back in the hopes of another Ridgewing, so as to complete a pair. However, as soon as she hatched the Magi revealed she was not purebred Ridgewing, becoming the first non-pureblood inside the castle. Coming from half Golden Wyverns, however, made her somewhat accepted, the breed being known and liked among the others. Though physically Reau shows all the signs of a Ridgewing, she tends to hang around those of gold coloration, and has the vanity of her wyvern kin. Often she is perched somewhere in the mountains, enjoying the view of the forest and castle below, and the wind which rustles under her wings.