Jōshō Adashino

Josho Adashino, also known as The Black Jewel, is a major antagonist of the show Naruto. He has another person within his body, known as Keibetsu Pyuta.

Inner Twin
Josho was born as two people sealed in a single body, and switches between the two. One goes by his given name, Keibetsu Pyuta, while the other has taken the name Josho Adashino. Josho has been banished from the Land of Winter by Keibetsu, as neither is aware of how they are connected. The only place they switch, and the place where a switch happens every time, is the place where they were born. While Keibetsu is an understanding person, if a bit cold, Josho is completely different. He is not cruel, but is ruthless in battle, and power hungry.

After the Siege of Hokorigakure, it appears that Josho has taken over permanently, although this is yet to be proven.

Defense of the Land Arc
It is seen that Josho has conquered a small unnamed village in the mountains on the edge of the Land of Beasts, and is enslaving the people. He makes them mine for gold and gems. To make them work fast, he has a number of people placed in ready dug graves, and uses his jutsu to cover the graves in a sheet of obsidian. The people within slowly suffocate, and are released only when the villagers bring him enough wealth.

When a messenger arrives from the village, with news of an attack, and dies shortly after, Odayaka is sent to investigate. He finds that Josho Adashino has enslaved the village single-handedly and is forcing them to mine. He then prepares to attack Josho.

The next day, Odayaka attacks the village, doing damage to the obsidian walls now around it. When Josho attacks, he feigns injury, and lures him into the mountains, so as not to damage the village anymore. Summoning Rutiwani, he engages in a powerful battle with Josho. It is short but furious, and in the end Josho is low on chakra, and Odayaka can't defeat him. However, shortly ninja from Hokorigakure arrive, and Josho is forced to flee. They pursue him over the mountains and into the Land of Winter. When they are over a certain point on the ice, Josho transforms into Keibetsu Pyuta, who declares that they have invaded his land. They are chased off by Kyokumaru and the Hyogaado, with Keibetsu shouting that he will not allow them to go unpunished.

Siege of Hokorigakure Arc
After hearing of Kyokumaru's death from the survivors of the invading party, Keibetsu is enraged, setting out with a massive army, including both of his Master-Captains. He ignores their advice to the contrary, saying that even if it costs him the throne he will not be bested by Hokorigakure.

When they reach the edge of the Land of Beasts, they find Odayaka leading a large force of ninja to resist them. The battle lasts for many days. Eventually, knowing that he will lose, Odayaka attempts to persuade Keibetsu to end it, telling him that the Winter ninja may win, but he will lead a broken force back. Keibetsu refuses to stop the battle, ccausing the Master-Captains consternation. Odayaka then requests to fight him one on one, loser to take his army away. Keibetsu once again refuses. Then Odayaka says that he will beat Keibetsu anyways, and attacks him. Keibetsu signals to the Master-Captains to stay out of it.

They duel for a long time, Keibetsu revealing that he can turn into the form of any of the pewter talismans he possesses, turning him into a Taijutsu master. He seems to be more than a match for Odayaka, until Desmatowani is summoned. Even here, Keibetsu holds his own. However, Mind Hum causes him to lose his animal form, putting him at Odayaka's mercy. Though he still holds out, he seems finished. Odayaka then prepares Red Heaven. However, when Keibetsu collapses in despair, and gives in to fate, Josho Adashino is able to completely possess the body, taking it over for good, and block the jutsu with non-conductive obsidian. Odayaka expresses surprise, but reveals to have figured out about Josho and Keibetsu when he saw them transform in the Land of Winter. Josho, now in full control of the body, proves even more powerful than before, and is able to easily best the tired Odayaka at every turn. Utakata arrives, and gives Odayaka access to the Six-Tails' chakra, replenishing him. Then the battle begins in earnest. When it seems that, with his chakra being constantly replenished, Odayaka might win, Josho uses one of his puppets to stab Utakata, knocking him unconscious and stopping the chakra. Shocked, Odayaka uses the chakra he has left to use a full-power Mind Hum on Josho, apparently destroying his body, and wrecking the building surrounding them.

Josho is shown rising from the wreckage, with shattered obsidian armor about him, and grabbing Utakata's comatose form. He makes a comment about using the Jinchuriki as a lever to join Akatsuki, and escapes. Hokorigakure presumes that he, Utakata, and Odayaka all died there, although this proves entirely wrong.

Abilities
Pyuta uses shamanistic powers, being able to transform into any of the animals which he has pewter models of, and use related techniques, such as wind attacks for a hawk.

Josho has been shown using obsidian related jutsu, mostly just manipulating it for Taijutsu. He has yet to be seen using any named techniques.

Trivia
Josho Adashino translates as Risen Graveyard, suggesting both a grim personality and necromantic abilities.