Spitfires are a desert breed of dragon. Their dull brown bodies contrast with their brilliant turquoise markings, and they only blaze brighter when these dragons fight. Spitfires are notorious for their territorial natures, and the wing-edges of most are ripped and tattered before their first year is out. Spitfires are also noteworthy for their brilliant blue fire, which is used not for hunting or fighting, but rather for making glass caves from the sand, in which the dragons can soak up the sun.

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.

Nasrin is the adoptive little sister of Buthainah, who found and raised her from when she was a hatchling after her parents were killed. She has inborn fighting instincts and is an excellent  fighter. Nasrin's name can be divided into two parts: "Nasrin" which means "blue scented flower" and "Masago" which means "Sands of Time".  She added 'Masago' to her name out of respect for Buthainah and also because it appears to others that she and Buthainah are blood sisters.