Sapphire Dragons were so named for their brilliant blue-green color, which is reminiscent of the gemstone. This breed was historically hunted for their scales; even long after, they remain distrustful of humans. Normally a Sapphire is not very aggressive, but they will defend themselves vigorously if under attack. Their diet consists mainly of fruit, with smaller portions of large insects and other invertebrates. Males woo females with vocalizations similar to bird songs. Sapphire Dragons are very loyal to their mates, and it is not unusual that they pair for life.

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.

Sapphire Thorn is the childhood friend of Sangue sulla Neve, a Bleeding Moon Dragon. She very much enjoys playfully fighting with her, even if Sangue sulla Neve can't restrain herself very well and always ends up scratching one or two of her beautiful scales.

Sapphire Thorn despises fur and hair, loves music, and has a short memory.

She once had a crush for a mysterious singer whose lyrics about mystical quests and nonsense adventures conquered her heart. Until she discovered the singer was the female Ribbon Dancer nemesis of her best friend.