Sunday, January 11, 2009
The Four-Tails (四尾, Yonbi) is a demon formerly sealed within Rōshi of Iwagakure.
It is currently unknown of what type of animal is the Four-Tails. Its Jinchūriki, Rōshi, was defeated by Kisame Hoshigaki just before his introduction. According to Kisame, he had a difficult battle because he had to face the Four-Tails' Lava Release.
The Four-Tails was later extracted and sealed, leading to Rōshi's death.
 Activity inside Rōshi
Little is known about the Four-Tails' abilities. As the Four-Tails' host, Rōshi has made use of its Lava Release techniques, which is rarely seen outside of kekkei genkai.