The Blood Kyn are a proud and mysterious flock comprised of , . These Kyn are known for their ability to change gender, as well as a preternatural skill with most weapons. They are able to communicate with other Kyn via mind-to-mind speech. They do have their own language, but due to regional limitations they are also fluent in human tongues such as English.

They mainly inhabit remote regions of earth, mainly ones related to their element, i.e., earth, ice, fire, etc. The Blood Kyn in specific are known by their distinct colorations, and are considered the 'demons' of the Kyn species. Human parents, and even Kyn parents often tell their children to behave or the Blood Kyn will get them.