Once upon a time there lived a black kitsune with red eyes in a dense forest, not far from the city of Inazuma. She was considered a mystical and mysterious being, because she was different from others of her kind. All kitsune were usually powered by the vital energy of men, but not this one. Her bizarre behavior and strange habits baffled the inhabitants of the forest, and no one could figure out what the secret of this mysterious creature was.

Her name was Nirena, which translated meant «beautiful fox».

Nirena preferences were animal meat, vegetables, fruits and berries.

She can be seen in the form of a fox with four black tails. It is larger than an ordinary fox, 170 centimeters.

The city of Inazuma. The earth of the Electro Archon. Two travelers, a Traveler and a Paimon, are walking around the city and have heard rumors.