Tailed Beast (Naru-On!)

In original Naruto anime/manga, tailed beasts (尾獣, bijū) are nine giant demons that serve to drive the plot of the entire series. They are differentiated by the number of tails they have, with each possessing a number from one to nine. The tailed beasts are large, living forms of chakra, sometimes referred to as "Chakra Monsters" (チャクラのバケモノ, Chakura no Bakemono), giving them power that far outmatches most shinobi. However, this immense strength is tempered due to their bestial nature, which restricts them from being intelligent enough to use it effectively. When the tailed beasts are sealed within humans, they are able to benefit from the knowledge of their hosts, giving them the ability to speak and better utilize their powers.

The comedic spin-off of Naruto: NARU-ON! features the Artificial Tailed Beasts instead of original ones, but mentions the existence of them in another dimension that Naruto series events occurred as well as Ten-Tailed Beast as their chakra source. The tailed beasts in this series is ridiculously made from common animals (and even mecha) that genetically transformed by Ten-Tail's chakra leftovers.

The history begun in Naruto universe, when Ten-Tailed Beast is separated to nine tailed beasts, an amounts of chakra leftovers is collected by unknown shinobi that seal it in Forbidden Chakra Chamber. Centuries later, for keepsake and preventing the manipulation of Ten-Tail's chakra leftovers, the chamber was send to another dimension an fall to the alternative universe of Naruto: NARU-ON!.

Then the discovered chamber was sold in "Chakra Supplies Store" and then bought by Akatsuki (alternate universe version) that knowing it as forbidden chakra. They using it by sealing the chakra to normal animals, thus genetically transform them to monsters called Artificial Tailed Beasts. The beasts was purposed to "perfect biological weapon for world domination".

An accident occurred, causing the beasts escapes and scattered throughout the world, and sealed within various human hosts. Akatsuki managed to get them back and continues their cunning plan of world domination.

Naruto Universe Tailed Beasts and Their Hosts

 * One-Tailed Shukaku
 * First Shukaku Jinchūriki
 * Affiliation: Sunagakure
 * Status: Extracted and sealed within second jinchūriki; deceased
 * Second Shukaku Jinchūriki
 * Affiliation: Sunagakure
 * Status: Extracted and sealed within Gaara; deceased
 * Gaara
 * Affiliation: Sunagakure
 * Status: Captured and extracted by Akatsuki


 * Two-Tailed Monster Cat
 * Yugito Nii
 * Affiliation: Kumogakure
 * Status: Captured and extracted by Akatsuki; deceased


 * Three-Tailed Giant Turtle
 * Yagura
 * Affiliation: Kirigakure
 * Status: Extracted under unknown circumstances; deceased


 * Four-Tailed Giant Monkey
 * Rōshi
 * Affiliation: Iwagakure
 * Status: Captured and extracted by Akatsuki; deceased


 * Five-Tailed Dolphin Horse
 * Han
 * Affiliation: Iwagakure
 * Status: Captured and extracted by Akatsuki, then later sealed within Li; deceased


 * Six-Tailed Giant Slug
 * Utakata
 * Affiliation: Kirigakure
 * Status: Captured and extracted by Akatsuki; deceased


 * Seven-Tailed Horned Beetle
 * Fū
 * Affiliation: Takigakure
 * Status: Captured and extracted by Akatsuki; deceased


 * Eight-Tailed Giant Ox
 * Fourth Eight-Tails Jinchūriki
 * Affiliation: Kumogakure
 * Status: Extracted by the Third Raikage, sealed within a pot and then into Killer Bee; deceased
 * Killer Bee
 * Affiliation: Kumogakure
 * Status: Sealed, active


 * Nine-Tailed Demon Fox
 * Mito Uzumaki
 * Affiliation: Uzushiogakure, Konohagakure
 * Status: Extracted and sealed within Kushina Uzumaki; deceased
 * Kushina Uzumaki
 * Affiliation: Uzushiogakure, Konohagakure
 * Status: Extracted and sealed within Naruto Uzumaki; deceased
 * Naruto Uzumaki
 * Affiliation: Konohagakure
 * Status: Sealed, actived


 * Ten-Tailed Beast
 * Sage of the Six Paths
 * Affiliation: Unknown
 * Status: Separated its chakra into the nine tailed beasts (and the leftovers chakra was collected and send to another dimension), and trapped its body in the moon; deceased

Naruto: NARU-ON! Universe Tailed Beasts and their Hosts

 * Eleven-Tailed Giant Armadillo
 * Senritsu Akaba
 * Affiliation: Chōshigakure
 * Status: Sealed, active


 * Twelve-Tailed Dragon Lizard
 * Harmony Onsei
 * Affiliation: Chōshigakure
 * Status: Sealed, active


 * Thirteen-Tailed Black Panther
 * Miyako Kōichi
 * Affiliation: Kaigagakure
 * Status: Sealed, active


 * Fourteen-Tailed Dinosaur
 * Ryunosuke Sagara
 * Affiliation: Chōkokugakure
 * Status: Sealed, active


 * Fifteen-Tailed Mammoth
 * Fubuki Miyazaki
 * Affiliation: Hisamegakure
 * Status: Sealed, active


 * Sixteen-Tailed Chimaera
 * Matsuri Hino
 * Affiliation: Shiryokugakure
 * Status: Sealed, active


 * Seventeen-Tailed Mechanical Pterosaur
 * Yonaka Daichou
 * Affiliation: Yonakagakure
 * Status: Sealed, active


 * Half-Tailed Tiger
 * Yobi Ryūkiba
 * Affiliation: Kikeigakure
 * Status: Sealed, active