Blancblack dragons are a two-headed breed known for their hardiness and easygoing nature. They are omnivorous, with the cream head preferring to eat plants and the violet head preferring to eat meat, and can adjust readily to harsh climates. These dragons are sociable—both with other two-headed breeds and with single-headed dragons—and can often be found as adopted members of social dragon colonies. They are often considered symbols of balance and fairness, and likenesses of Blancblacks have been found in ancient ruins associated with law and justice. Females Blancblacks have longer tails than males, which they use as whips when defending a nest from predators.

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.

Two-headed dragons are unique enough to deserve a separate classification from ordinary dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, snapping back and forth. Their unique anatomy prevents them from breeding with single-headed dragons.

Karasano can be pretty boisterous at times, but outside of occasional meetups with his friends, he tends to keep to himself. Nevertheless, he enjoys simply being in the presence of others, particularly the message carriers who regularly visit his family and the gossipy hatchlings of his siblings. He can spend hours simply listening to other dragons chattering about the recent news or the latest silly story about one of the elders in the clan. He thinks maybe he's just inherently lazy about keeping up with the times, but he feels reassured knowing that even if he might be out of the loop in terms of recent happenings, there's always someone in the family who can fill him in on what he needs to know.