Pink Dragons are primarily herbivores and only eat meat during the mating season, when mates will exchange kills. When it is not breeding season, pink dragons spend most of their time incubating eggs and caring for their clan’s young. Due to their feminine color, it was traditionally thought that pink dragons were a strictly female breed, but this is not true.

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.

Onajimi and fellow male Pink Dragon Minare were adopted together as eggs by the Sylvain clan. The two work together to create small toys and trinkets for the hatchlings of the family. More laid-back and relaxed than his brother, Onajimi creates toys based on designs and materials provided by Minare, and sometimes carves bits of wood in his spare time. His living space is littered with scraps of wood and sticks; he'll often go out looking for something in particular and end up bringing back surplus that he won't use until later. Minare nags him about the bad habit, but Onajimi has yet to make an effort to clean up after himself.