One of the immortal animals, kitsune are magical foxes with a variety of powers, depending on their age & prestige. The more tails a kitsune has, the more powerful. Some powerful kitsune put their souls into pear-shaped balls of gold that they guard or hide. If one gets ahold of these baubles, one will control the kitsune. If a kitsune fails to keep a promise, they will lose a tail. If all but one tail is lost, the kitsune becomes a normal fox.
The most powerful kitsune have nine tails. These become white, gold, or silver in color. These kitsune have the power of infinite vision.
Once a century, a kitsune can take the shape of a human for a whole day. During this day, the kitsune appears entirely human & has all normal human abilities & skills, except in weaker kitsune, who cannot hide their tails. These weaker kitsune often have a weakness for drink, or a terror of dogs, which can be exploited to force them to reveal their true form. If a kitsune in human form becomes pregnant, she will be stuck as a human til the child is born. The child will be fully human (assuming the father was human), but have a strange ability related to its mother's nature. Often, these children are confused for wild talents. If a male kitsune sires a child on a woman while in human form, he will not be stuck in human form, but the child will have similar powers.
Every kitsune has the ability to briefly possess an intelligent being. Often, they use this power for the sake of mischief, but sometimes greater needs exert themselves & they use the power for some higher purpose. Kitsune with more than three tails can manifest themselves in the dreams of any that follow the deities of fire or fauna. As such, they are holy to worshippers of fauna, fire, or dream.
Before a kitsune earns its third tail, it breathes fire. Once it gains its third tail, it can simply control fire at will, or create it by rubbing its tails together.
Kitsune are master illusion makers. Such is their illusion making powers, that when their victims discover it was all merely illusion, they often go mad.
Some rare kitsune are malicious beings, black as opposed to red in color. These are sometimes called kumiho when they attain their ninth tails.