Sinii Krai Dragons are known for their love of fish and their strong personalities. They are able to travel both in the air and in the water with their unique tails. They live on the coast in groups of ten or more and are fiercely territorial. Sinii Krai Dragons are nearly impossible to tame if not obtained at an early age. Great care must be taken around them as their skin is highly poisonous after maturity.

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.

Jukugo is highly defensive of her food caches, especially her hidden stocks of preserved fish. She's spent years learning how to cast protective enchantments over the little sea caves she uses to hoard her precious "treat fish", particularly focusing on identification spells that require passphrases to allow entry. Most of the passphrases she sets are utterly nonsensical tongue-twisters, often involving fish, which Jukugo has practiced for hours to make sure she can recite them without stuttering. In addition to being difficult to replicate, the passphrases also make it obvious to Jukugo if someone has been snooping around. After all, no one would have any other reason to be discussing a sad man's solemn salmon that swam on Samhain.