Caligene Dragons have long been considered omens of death—reinforced by the skeletal markings on their bodies. They exert a malignant force on the world around them, causing other living things to slowly waste away in their presence. Caligenes favor the seasons of summer and autumn, disappearing entirely from the forests they inhabit during winter and spring. These malevolent dragons are physically weak, though this is countered by their natural stealthiness and alarming speed—enabling them to close in on large targets quickly and silently to create ambushes from which prey cannot escape.

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.

Ohzeeohmai works at Nworset's history museum, using his death magic to disable the microscopic specks of life that eat old parchment and decay antique wood. He takes careful stock of the status of preservation of everything in the museum and decides when a piece can be displayed, when it should be taken back into the archives, how much handling each item can withstand, and when things need to be taken to a light-aligned restorer for magical repair. While walking among death and decay is natural for him, sometimes he needs something more lively; he often can be found at the Nworset Theatre in the evenings and sometimes tries out for parts in various plays.