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.

Yosei was the unofficial "leader" of the cave until the arrival of Kurosaki Ichigo. Strong in combat with his staff and healing magic, it is incredibly difficult to defeat Yosei in combat. It is fortunate, then, that Yosei only fought in the most dire of circumstances due to his draconine nature. He had originally fallen in love with She Who Protects, but the two had a falling out due to SWP's rigid dedication to protecting the other dragons in the cave leaving little time for the two to see each other. He is now mated to Sky Ballerina, and enjoys spending his afternoons flying with her over the nearby valleys.