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.

Black-Hole-Sun was named after her dark appearance and her "Sunset" nature. Though unlike her looks, she is a lively female dragon who enjoys hanging around her friends, children, and her mate. Black-Hole-Sun grew up in a boring and quiet cave with all the other Sunset dragons. Then one day when she was an older hatchling she got out of the cave and met her current mate, a Daydream dragon who filled her life with excitement and adventure with her new wonderful, yet crazy dreams that he gave her. In her free times she likes wandering around at night in the forest where her favorite place is to relax-the waterfalls.