九尾 九尾の妖狐 –
Nine Tails (Kyuubi),
Kyuubi no Youko
(Nine-Tailed Demon Fox)Jinchuuriki: Uzumaki Naruto
Tale in the Legend of the Tailed Beasts：This is a bijuu in the shape of a nine-tailed fox, and the strongest of them all. The reason he is so powerful is simple: Kyuubi has an unlimited amount of power, earning it the "King of Bijuu" title. The power is generated by Kyuubi's Fire Seal, and as a result, after battling for 100 years with Yamata no Orochi, it becomes exhausted; but Kyuubi continues standing, able to fight. It is also pretty cunning and smart.
Situation in the Ancient War of the 9 Gods： Battled 4 times; All of them victories
Wins： Nekomata, Houkou, Raijuu, Yamata no Orochi
Fate： In unclear whereabouts, Kyuubi continues to kill all the people on his way to find the one who awakened him, and the one who managed to seal him before. (That being Yondaime, probably) Yamata no Orochi didn't tell Kyuubi, though, that the one who awakened him was the Eight Tails himself.
Japanese Myth Appearance: Kyuubi no Youko is the strongest (S Level) Bijuu of the Japanese Myth. Its body has a red fur; Kyuubi represents the element of Fire. Its abilities are incredible. Because it has never been defeated by any youkai, its total strength is unable to estimate. His tails create cyclones by spinning quickly, and Kyuubi proceeds to rip its enemies with its huge claws. At the same time his fur may shoot fireballs similar to meteorites endlessly, instantly destroying villages. In the ancient Bijuu wars, a challenge results in Houkou being severely wounded, and Nekomata nearly dying, but ending up being rescued by his master, Shinigami (God of Death). Yamata no Orochi depended on the Kusanagi no Tsurugi to fight Kyuubi, but was defeated and the sword received a cracked hole, courtesy of our kitsune.
Ability: Fire element attacks, Flaming claws, and other things depicted above
Bijuu Strength Ranking： 1st
Bijuu Chakra/Stamina Ranking： 1st
Symbolic Element： Fire (God of Fire)
Origin / Discovered in： Hidden Altar of Gods in Kobe
Personal Notes: Interesting how he searches for the one who sealed him. Also, it would be nice if Oro was the cause of Kyuubi's awakening – the reason Kyuubi attacked the village may very well be because it's the place he was last seen.
More info about Kyuubi: The Kyuubi is an intelligent demon that is capable of speech and has a scathing, sadistic personality. However he has also a sense of fairness and sarcastic honour, as he sometimes helps Naruto when he is in a difficult situation. This could be for purely selfish reasons, however, for it is speculated that if Naruto dies, then the Kyuubi will die with him. It seems likely that the Kyubi has some concept of a loathing respect for Naruto and even more so for the Fourth Hokage.