Kyuubi | The Nine-Tailed Demon Fox
The Nine-Tailed Demon Fox is the most powerful of all the Tailed Beasts; a single swipe of one of its nine tails can raise tsunamis and flatten mountains. it is an age-old natural disaster which can appear out of nowhere and goes into areas where human malice collects and festers. At an unknown time, the demon fox met with the founder of the Uchiha clan, Madara Uchiha, who used his Mangekyo Sharingan to control it and he used the demon fox to battle against Hashirama Senju, the First Hokage, for revenge. The battle was so great, that it tore the earth apart and it created the Valley of the End. At the end of the battle, Madara was defeated. Many years later, he used the demon fox to attack Konoha (although Madara claims that the demon fox’s attack on Konoha had nothing to do with him or the Uchiha, saying it was a “natural occurance”). During the attack in Konoha, the demon fox decimated all the ninja that came to it, but was defeated by Minato Namikaze, and Gamabunta. After they defeated it, Minato sealed the demon fox within Naruto, breaking Madara’s control over it. Ever since then, the demon fox has a special loathing for the Sharingan and those who uses it, even remarking Sasuke Uchiha’s eyes and chakra was far more sinister than its own, because his Sharingan reminded it of Madara. As the demon fox was being supressed by Sasuke, it warned him not to kill Naruto, he’d only end up regretting it if he did.
The demon fox is a beast of almost complete malevolence. It is intelligent, and has a scathing and sadistic personality. However, it does have a sense of honor, and possesses a loathing respect for Naruto and the Fourth Hokage. Additionally, it has a distinct sense of pride and became rather angry and scornful at Naruto when he rejected its chakra in Part II, though this might have merely been anger over missing an opportunity to partially usurp control over Naruto’s mind and body thus weakening the seal. The demon fox relishes the thought of killing Naruto, but it knows it has to help as long it’s sealed within him or it will die.
