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.

Sincerity means to be "free from pretense, deceit, or hypocrisy." It can also be known as a synonym for honesty and integrity. Sincerity was aptly named due to his genuine personality. Some say he wears his emotions outwardly and hides beneath no mask. This is true; if Sincerity is sad, his entire demeanor droops and if he is happy, his body reverberates with an infectious joy. Likewise, towards the deceitful, Sincerity's anger has snarled more than once towards those who have tried to take advantage of his openness.