Baikala Dragons are mysterious beasts that inhabit the lesser-known depths of deep lakes and oceans. These exceptional swimmers actively hunt whatever live prey has the misfortune to draw near, and have even been known to breach in order to snag low-flying prey directly out of the air. Though it is unknown exactly how intelligent Baikala are, they are exceptional strategists and problem solvers. Their two heads seem to think and behave as one.

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.

Tsubusu loves to gather shellfish from the bottom of the ocean, near a cliffside that she swims over to when she happens to have collected a bigger haul. There are small indents in the rocks that she can smash clams into when she doesn't feel like biting the shells open. This behavior confuses the water-dwelling hatchlings of the family a bit, and some have taken to showing up to the cliffs with their own clams so they can join in the clam smashing parties. Tsubusu doesn't mind, since usually she's the one who eats all the clams at the end.