When Water Dragons mature, they lose the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

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.

His real name is Tin Tan, but ever since he learned that his mother's name was Seiryu of the South, he has insisted that everyone call him King of the Whole Entire World, and made his master write it in her scroll as his name. He refuses to believe that his mother was just -named- after a god, and is absolutely convinced that she is the real Chinese Dragon God of the South.

The King is often quite arrogant in his interactions with other creatures, but he admits that Lucky makes him very nervous because she is "a very, very angry dragon." Most other dragons don't take him seriously, and will call him Your Majesty to make him happy.

He likes to line up all the mint dragons he can find and order them around as his personal 'army.' They don't seem to mind, and usually think it's a pretty fun game, collecting rocks and building little fort-like nests in the name of The King, but if he orders them to attack anything, they usually scatter and run before the creature can even look their way.