Sunset Dragons are closely related to sunrise dragons. However, their behaviors differ greatly. Sunset Dragons generally live alone or in small packs. They are more active in the evening, hunting and performing all of their daily tasks as the sun sets.

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.

Daku Ryuu meaning Dark Dragon is a very factual dragon. He doesn't understand concepts that don't have proof, such as emotions and the bond between dragon and human. He is incredibly smart but doesn't often show it, because all he ever does is spout off useless facts. He has a bit of a temper but never really acts on it and when he does he simply rants, instead of doing anything psychical.