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The original article can be found on Narutopedia at Isobu.


Manga version of Isobu

Anime version of Isobu

(磯撫, Isobu)

  • Three-Tails (三尾 Sanbi)
  • Giant Turtle (巨大亀, Kyodaigame)





Saiteki Misumi

"Tailed Beast" is not in the list of possible values (ANBU, Cooking-nin, Daimyō, Hunter-nin, Jinchūriki, Medical-nin, Missing-nin, Ninja monk, S-rank, Sage, Samurai, Sannin, Sensor, Summon, Tailed beast) for this property.
Tailed Beast
"Kirigakure" is not in the list of possible values (Allied Shinobi Forces, Akatsuki, Root) for this property.
Kirigakure Symbol Kirigakure
Nature Type

Unique Traits

  • Produces Coral

Isobu (磯撫, Isobu), more commonly known as the Three-Tails (三尾, Sanbi), is a tailed beast.



The young tailed beasts with the Sage of the Six Paths.

Isobu first came into being in the waning days of the Sage of the Six Paths, who used his Creation of All Things ability to separate the Ten-Tails' chakra from its body and divide it into nine separate constructs in order to ensure that it would never resurface after his death.[1][2] Some time after being created, the Sage sat down with all the young tailed beasts and told them that they would always be together even when separated, and that one day they would become one entity again with different names as well as forms than they did then when the time came for them to understand what true power is.[3]


Isobu speaks in a shy manner, referring to itself as 'boku' (ボク) which is usually used by young boys.


Isobu primarily resembles a large turtle, but with a crab-like shell and three shrimp-like tails. Under its shell, it has red, muscle-like tissue. It has a pair of human-like arms and hands, but no hind-legs. Its lower jaw is rather big and has teeth-like horns, together with its big forehead, which also has horns, it somewhat resembles a mouth with big teeth, making it look like the rest of the face is inside the mouth. Its eyes are dark and have red pupils. In the anime, the eyes are red with green pupils. Its right eye is constantly closed, indicating some sort of injury, and because of this, it is particularly vulnerable to attacks directed at its right eye. During the last remaining days of the Sage of the Six Paths, Isobu was much smaller than it currently is but was still many times larger than the Sage.[3]


Three-Tails Rolling

Isobu rolled into a ball.

Isobu has the ability to create coral, and swim at very high speeds. Like all tailed beasts, it has an enormous amount of chakra compared to most ninja and can form the tailed beasts' ultimate attack, the Tailed Beast Ball. Tobi suggested that Kisame would have been a better choice for capturing the beast, given its affinity for water. Deidara claimed that because Isobu lacked a host, it couldn't control its own strength. Isobu has also been shown to be able to roll into a ball and attack its opponents, making full use of its shell and its many protrusions in a manner similar to the Akimichi clan's Spiked Human Bullet Tank. Its tough skin and shell also provides additional defence for the beast, allowing it to withstand nearly all forms of attack. In the anime, it was revealed that its only known physical weakness it possessed was its eye, as hard as its skin and armoured shell are, it cannot harden its eyes and so seems to keep one closed at all times.

Bijuu dama

Isobu using the Tailed Beast Ball.

In the anime, its abilities were greatly elaborated upon, many of which dealt with its size: it could roar to repel attacks; it could produce a large tidal wave that spread away from it in all directions; it could strike with any of its three spiked tails to break through most defences. Its skin was resistant to attack in a similar fashion. With these abilities, it overwhelmed Guren's Crystal Release several times over the course of their battle.

Three-Tails Menacing Water Ball2

Isobu firing chakra-infused water balls.

Of the beast's more specialised abilities, it could produce a hallucinogenic mist that exploited the victim's insecurities and forced the victim to face them. It could also shoot powerful chakra infused water balls. When it ate something, thousands of miniature versions of itself would attack what it had eaten within its stomach, presumably to speed up the digestion process. In addition to its anime appearance, the beast was shown capable of materialising an entrance to a separate dimension in which it could hide its presence, until it was ready to return.


  • 'Isobu' (磯撫) literally means 'beach stroker', and is also an adaptation of the name of the Isonade (磯撫で).
  • Turtles are often used as the base design for sea monsters in Japanese folklore. Isobu's design in particular was conceived as a result of the series creator, Masashi Kishimoto's, interest in monsters, yōkai, and kaijū, mixing together various elements of those types of creatures to create a monster with a turtle's body and a shrimp's tail with a crab-looking figure.


  1. Naruto chapter 467, pages 15-16
  2. Naruto chapter 510, pages 11-12
  3. 3.0 3.1 Naruto chapter 572, pages 10-11
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