Spirit Ward Dragons are a special breed that ward off evil spirits—at least, that’s what the legends say. During nighttime festivals, people love to see these dragons, because they believe that the dragons guard against evil spirits. The dragons are dark-colored, but glow with a flame-colored internal light that has an intensity that they control.

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.

Along with the other Spirit Ward dragons in the Sylvain clan, Kuro regularly patrols the family's safe house caves and shelters during the nighttime, keeping away malicious individuals and watching over any clan members who may be seeking shelter until the next sunrise. Occasionally, some of them will leave snacks and other treats for him to find when he passes by again. It is somewhat of a lonely job, as he tends to be on the move quite often, but Kuro enjoys knowing that his family members feel safer with him guarding the darkness.