Kitsune

The Kitsune under contract to Hikari are the direct offspring of the Senbi no Yōko (千尾の妖狐, Demon Fox of a Thousand Tails), leader of the Demon Fox Clan affiliated with Gyururu.

Demon Foxes, also known as Spirit Foxes, are a group of Yōkai that reside in the Lost Forest of Yōko that exists in a realm of its own. They vary in size, with the smallest being only the size of a house cat, and the largest one being able to increase its size to the point where it could easily crush a village the size of Konohagakure under its paws.

Their strength is usually represented by their number of tails. They are highly intelligent creatures that use what is known as Fox Senjutsu instead of relying on physical prowess. They are capable of feats that are beyond human understanding and possess incredible resistance to the elements of this world. It is in their nature to come and go as they please, making them difficult partners to work with.

The Kitsune under contract to Hikari are lead by an unnamed Demon Fox that defected from his original clan, likely due to the fact he was rejected by both the Senbi (God of Yōko) and the Hyakubi (Mother of Yōko) for his wrongful deeds, misdoings so shameful that even the most malevolent of his clan felt he should be banished from the Lost Forest of Yōko for good. Almost all of the knowledge he possesses, he acquired himself. Centuries passed, and as he collected a great number of tails, he began to miss his home and the comforts of his own kind. Too stubborn to return and apologize for his immorality, he instead chose to create his own clan within the human realm, over which he could rule, just as his father, the Senbi, does over the Demon Fox realm.