White Dragons are pacifists and specialize in extremely strong healing magic. The only limit of this magic is that it can’t bring back the dead. They only eat plants and never kill living things.

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.

Guo is a creature who tries to heal everything's wounds, whether physical or mental. His mother was attacked and viciously used by a gigantic black dragon. Guo did not understand why his mother was so sad sometimes when looking at him until he matured, and the human who looked after him told the unfortunate tale.

With this information, Guo went into a meditating slumber, trying to figure out what the meaning of his existence was. When he emerged weeks later, he had decided that he could not right the wrong against his mother, but he could try to make up for his own failings by helping all other sentient creatures overcome sorrow and pain.

The healer dragon has about him a nigh-tangible aura of restfulness, which can diffuse all but the most hostile situations, calm all but the least sane of madmen, and soothe all but the pain preceding death. This seems to be related to his telepathic abilities.