One particular variety, the small, weasel-like kuda-gitsune or "pipefox" (sometimes known as kanko, izuna or osaki) is employed as a Familiar by human families. In some stories, they don't take very kindly to uninvited guests, and will take revenge on any person they catch interrupting, sneaking into, or even spying on their weddings. Kitsune are also said to hold lengthy wedding ceremonies between two of their brethren during sunshowers, which shares the common theme of rain during clear skies being the result of strange or supernatural marriages in many other cultures. The resulting children are usually not kitsune themselves but have magical powers - with Abe no Seimei being the most-famous example. For some reason, kitsune are usually female (or a Pretty Boy if male), and often end up falling in love with and marrying human men (in fact, female Kitsune are considered to make devoted wives and doting mothers). The stories of Daji and Tamamo-no-Mae, powerful fox spirits who led kingdoms to ruin by corrupting their kings, are iconic in Far Eastern folklore and they are often treated as one-in-the-same. They usually play their pranks on men, while they have a tendency to possess women (which is associated with actual psychological disorder in Japan - such as sleep paralysis -, similar to clinical lycanthropy elsewhere). While their mythological origins have them as divine servants and even gods of a sort, they're also classic Shapeshifting Tricksters and Seducers who mess with mortals for giggles.
Squinty eyes or Eyes Always Shut are common distinguishing characteristics shared among many depictions, too, called " kitsune no me" ("fox eyes" or "shifty eyes" in English). In fox form, they tend to grow additional tails as they get older, up to nine in total (known as Kyūbi no Kitsune, and usually treated as incredibly powerful and dangerous even if they're not evil, which they often are). To be more precise, in Japanese folklore, all foxes are supernatural, the "normal" ones are simply too young to have developed their powers yet an intelligent fox creature with magical powers, including Shapeshifting (particularly to human form), enchantment, illusions, Faux Flame, and supernatural wisdom. "Kitsune" (pronounced "kee-tsoo-neh" /kit͡sɯ̟ᵝne/) is the Japanese word for fox, but it can also refer to a type of Youkai in Japanese Mythology, note "bake-gitsune" (" changed/changing/disguise/monster fox") refers to this variety in particular, but the term hasn't picked up much outside Japan. In East Asia, Fantastic Foxes are prominently featured in folklore.