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穆王 Kokuō

  • Five-Tails (五尾, Gobi)
Manga Volume #60, Chapter #566
Anime Naruto Shippūden Episode #165
Movie The Last: Naruto the Movie
Game Naruto Shippūden: Ultimate Ninja Storm 3
Appears in Anime, Manga, Game, Movie
Voice Actors
Kekkei Genkai
Nature Type

Kokuō (穆王, Kokuō), more commonly known as the Five-Tails (五尾, Gobi), is a tailed beast sealed within Han from Iwagakure. It has been captured, extracted, and sealed by Akatsuki. In the anime, Kokuō is indicated to have been one of the two tailed beasts that Akatsuki captured before the start of Part II. It was later resealed into a reincarnated Han during the Fourth Shinobi World War.[2]



Kokuō 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.[3][4] 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.[5] Kokuō eventually fell into the possession of Iwagakure and was sealed into Han.


Kokuō seems to be a quiet and reserved individual. Though it does not speak much, Kokuō uses the rather old-fashioned 'watakushi' () when referring to itself, causing it to come across as very polite.


Kokuō primarily resembles a white horse, but with a dolphin's head. It has two pointed long horns and three shorter horns in front. The ends of its horns, hooves, and tails are light brown, with some of the same-coloured spots before the brown areas of its horns and hooves. It also has red markings under its dark blue-green eyes. During the last remaining days of the Sage of the Six Paths, Kokuō was much smaller than it is now and its horns were also shorter.[5]


File:Bijuu dama.png

As a tailed beast, Kokuō has a great amount of chakra and is able to use it to create a Tailed Beast Ball. Kokuō uses its horns in combat, it has shown enough ramming-force to even injure Gyūki and knock it a considerable distance away.[6]

Part II

Shinobi World War Arc

File:Six,two,five,three-tails full transformation.png

After Han's full transformation into Kokuō, he rammed into Gyūki and pushed it a considerable ways back. Seemingly rushing towards the shinobi to attack them again, Kokuō is restrained by Tobi. As the chain wraps around its neck, Kokuō comments on the pain and laments about being controlled in this manner, revealing that for an instant it had broken free of Tobi's control and attempted to attack him. Forced back into its submissive Version 2-like state, it begins to attack the shinobi as commanded. After Son Gokū is resealed into the Demonic Statue of the Outer Path, Tobi, who is intent on going all-out from this point on, forces Han to fully transform into Kokuō.[7]

Preparing to attack the shinobi, Kokuō along with the other four beasts create Tailed Beast Balls. These attacks however, are deflected by Naruto and they are rebuffed by a now fully-transformed Naruto. Wasting no time in their attacks, Kokuō attempts to attack Gyūki again while it is preoccupied with Isobu. The beast is however sent flying by Gyūki. With this, the opposing beasts prepare a collaborative Tailed Beast Ball which is met by one from Naruto and Kurama.

File:Naruto meets bijuus.png

As Naruto enters a deeper plain of the tailed beasts' consciousness, Kokuō introduces itself to Naruto. Later as the beast is freed from the chakra receiver it affirms Kurama's belief that Naruto was the person the Sage of the Six Paths had spoken about so long ago before being resealed into the Demonic Statue of the Outer Path.


  • 'Kokuō' (穆王) literally means 'respectful king'. This name probably comes from the name of the tenth-century-ʙᴄ Chinese King Mù of Zhōu (周穆王, Zhōu Mù Wáng). He's famous for the legend surrounding his visit to the sacred Kūnlún Mountains (崑崙, 昆仑山, Kūnlún Shān), where he visits the goddess Xī Wángmŭ (西王母, Queen Mother of the West) so he can eat from her peaches of immortality. There is also an account of the King being shown a human-shaped automaton — a completely artificial, fully functional robot with internal organs and all. This might tie into Han's appearance and abilities. In Japanese, the name '穆王' is pronounced as 'bokuō', so the unusual 'kokuō' pronunciation used for the beast's name was probably meant to bring the word 国王 (king) to mind.
    • The kanji '穆' in Kokuō's name comes from the archaic adjective 'bokuboku' (穆穆), which means 'peaceful and lovely' or 'humble and dignified' and are also traits often associated with horses and dolphins.
  • According to Kishimoto's words from the second Naruto artbook, he tried to do a mix of a dolphin and a horse.


  1. Fourth Databook, pages 148-151
  2. Naruto chapter 565, page 1
  3. Naruto chapter 467, pages 15-16
  4. Naruto chapter 510, pages 11-12
  5. 5.0 5.1 Naruto chapter 572, pages 10-11
  6. Naruto chapter 566, page 15
  7. Naruto chapter 570, pages 8-9

Start a Discussion Discussions about Kokuō

  • Does the Five Tails possess the Boil Release?

    29 messages
    • Seel's point was that the assumed furnace may have nothing to do with Han's steam production.
    • Elve-kun is right. The armour might just've been a style thing by Kishimoto to let Han look more interesting. TU, your point is interesti...

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