Gumiho

There is an old rhyme that children sing to one another in parts of Vaale. No one knows where it comes from, which of the races propagated it nor what its intent or meaning could be; they know only it's a popular song that almost every child learns at some point. This song speaks about a strange fox who comes to play tricks and brings misfortune (or good fortune). What it doesn't confirm (or deny) is whether this is just a fantasy.

In fact, it is more than truthful. While they go by many names, the Gumiho are a group of fey that appear with vulpine traits--fox ears, fox legs and similar features. What they all share are fox tails which number from two to upwards of nine. They infiltrate societies, bringing good or ill fortune as their whims decide, almost always keeping their true nature a secret.