Obito Uchiha

Obito Uchiha (うちはオビト, Uchiha Obito) was a chūnin of Konohagakure who was believed to have died during the Third Shinobi World War, but in truth survived with the help of Madara Uchiha. Distraught by the death of the girl he loved, he became a missing-nin and dedicated his life to ending world conflict, using Madara's identity as well the alias Tobi (トビ, Tobi). For years, Obito manipulated Akatsuki from the shadows to further his ambitions before eventually going public with his agenda and starting the Fourth Shinobi World War.

Early life
Obito grew up not knowing who his parents were, a sad upbringing which led him to dream of one day becoming the Hokage so that the people of the village would acknowledge his existence. Obito arrived late for his enrollment in the Academy, but was relieved when Rin Nohara handed him his orientation-documents. He eventually graduated at the age of 9 and was placed in Team Minato with Rin and Kakashi Hatake under the leadership of Minato Namikaze. For their final test to become genin, Minato tasked his potential students with taking one of two bells from him in combat. After failing to take a bell on his own and seeing that Minato's skill was well above their own, Obito agreed to work with his team to get the bells. Ultimately, Minato passed all three of them as they succeeded in the real test: showing team-work. The team later took part in the Chūnin Exams, during which Obito arrived late for the second test in the Forest of Death, having stopped to help an elderly woman. When Team Minato ran across an enemy team, Obito attempted to impress Rin with the Uchiha clan's fire technique, but ended up choking on the candy the elderly woman had given him and was soon defeated by Might Guy. He trained extensively between the second and third exams and told Rin his dream of becoming Hokage; however, he was eliminated in another bout with Guy, who was then beaten by Kakashi, allowing him to rise to the rank of chūnin. Obito did attain the rank some years later at the age of 11. During the Third Shinobi World War, Kakashi was placed in charge of the team for a mission to destroy the Kannabi Bridge, which would hinder Iwagakure from using Kusagakure as a relief point. Before beginning the mission, Minato and Rin gave gifts to Kakashi to celebrate his promotion to jōnin, though Obito had forgotten, thus straining an already poor relationship. Minato would soon be called to the front lines, leaving the team to carry on the mission alone. The three were then discovered by Iwa-nin and Rin was captured. Kakashi elected to abandon Rin, believing it was more important to finish the mission before concerning themselves with her safety. Obito became enraged at the idea and insisted that they focus on her rescue. When Kakashi refused, Obito left on his own, remarking that Kakashi was worse than trash for abandoning his friends. Obito located the cave the Iwa-nin were using as a hideout, but before he could make much progress, he was found and attacked by a camouflaged Taiseki. Having a change of heart because of Obito's parting words, Kakashi arrived and saved Obito, shielding him from Taiseki's attack and losing his left eye in the process. To save his team-mate, Obito awakened his Sharingan for the first time, allowing him to see through Taiseki's camouflage and kill him. The two found and released Rin from her restraints, prompting Kakkō to bring the cave down around them. As they made their escape, Kakashi's limited vision greatly hindered him, and when Obito noticed he was about to be crushed by a falling boulder in his blind spot, he pushed him out of the way and became trapped under the rubble in his place, crushing the right half of his body. With no way to escape, Obito accepted his fate and made an offering: to give Kakashi his left Sharingan as an apology for forgetting to get him a present earlier. Rin performed the transplant and once the procedure was finished, Kakashi used his new Sharingan to kill Kakkō. The Iwa reinforcements quickly began to further compress the rubble, forcing Kakashi and Rin to leave Obito behind. As the rocks tightened around him, Obito lamented that he had finally became friends with Kakashi and was unable to confess his feelings to Rin. Minato rescued Kakashi and Rin, and Obito was believed dead, his name marked on Konoha's memorial. In actuality, Obito was rescued by an elderly Madara Uchiha, who found the younger Uchiha when the cave-in brought him to one of the tunnels leading to Mountains' Graveyard. Though his Sharingan was miraculously unharmed, the entire right side of his body from the neck down was completely destroyed, prompting Madara to reconstruct his body using Hashirama's artificial body,[11] while secretly placing a cursed seal on Obito's heart to restrict certain actions, such as committing suicide. Telling Obito that he now owed him his life, Obito instead declared that he wanted to return to Konoha and be with his friends. Madara informed him that his new body would prevent him from becoming a shinobi again, and that in the end it wouldn't matter. Madara preached about the harsh nature of reality and how he had a plan to change the world. Still unconvinced, but otherwise unable to leave, Obito remained beneath Mountains' Graveyard to recuperate. While undergoing rehabilitation to use his new limbs, he met and befriended White Zetsu and another spiral-faced Zetsu he called Guruguru. As Obito was finally getting used to his new limbs, White Zetsu alerted him to the fact that Kakashi and Rin were surrounded by Kirigakure-nin and in danger. Obito tried to punch through the boulder blocking the exit, but destroyed his right arm in the process.[13] Guruguru then encased Obito with his body and used the Demonic Statue of the Outer Path's power to destroy the boulder. As Obito prepared to leave, he told Madara he had no intention of returning, but thanked him for saving his life. Madara in turn told him that he would return willingly and thank him truthfully. Using Guruguru to locate his friends, he learned that Minato was once again absent. On his way, Obito's left eye socket caught a glimpse of what his left eye was actually seeing, but dismissed it as a panic thought. Upon reaching the battlefield, he was shocked to see Kakashi had impaled Rin through the heart with his Chidori. As Rin died before both of them, their Sharingan matured into Mangekyō Sharingan and Kakashi passed out quickly afterwards. Enraged at Rin's death, Obito responded by using a combination of his newly-awakened Kamui and Wood Release abilities to slaughter all of the Kiri-nin. Ignoring Kakashi completely, Obito cradled Rin's lifeless body and, with Madara's words still echoing in his mind, vowed that he would create a world where they could be together again.With new conviction, Obito returned to Mountains' Graveyard and agreed with Madara's conclusion that the reality they lived in was worthless and should be destroyed. He vowed he would create a new reality where he, Rin, and Kakashi would be together again. Pleased, Madara told Obito the details of the Eye of the Moon Plan, the secrets of the Demonic Statue and the role Nagato would play with his Rinnegan. He would go on to teach Obito much of his skills and knowledge, including Uchiha kinjutsu, Yin–Yang Release and the Six Paths Technique. Before passing, Madara seemingly created Black Zetsu by pouring his will into White Zetsu and also left part of his will in the chakra receivers extending from the Demonic Statue's navel. Disconnecting himself from the statue, Madara told Obito that until the day he was revived, Obito would be Madara Uchiha and must work to bring the Eye of the Moon Plan to completion.

Kuro Akatsuki Arc
Now that they have a strategy to use against Tobi, Paul Gekko begin to coordinate their efforts. One of Naruto's shadow clones attacks Tobi, but the attack appears to fail and the clone disappears. The real Naruto attacks immediately afterwards with a Tailed Beast Ball, which Tobi avoids by retreating to the other dimension. There he finds Naruto's shadow clone waiting for him, having been sent there by Kakashi's Kamui. Before he has a chance to react he is hit in the face with a Rasengan, shattering his mask. His face revealed, Team Kyoji recognize him as Obito Uchiha. Kyoji Gekko surprised with Obito's presence, wonders how he is still alive, while Yuki Imai confirmed it to be Kakashi's former team-mate upon seeing both his Mangekyō Sharingan and a visibly altered face on the right half. When asked how he survived and why he never returned to Konoha, Obito states that it was because Kakashi had let Rin die. Joining Madara atop of the Ten-Tails' head, two tendrils attached themselves to the Uchiha to give them control over it. Wanting to cast the Infinite Tsukuyomi immediately, Obito was dismayed when Madara expressed wanting to test out the beast's power first. Obito and Madara Uchiha is then separated from the Ten-Tails as Paul Gekko recognizes the resemblance of Shinseijū. Forced to battle the enemies directly, Obito and Madara collaborated their attacks, which fail to kill any shinobi in the Allied Forces thanks to the chakra cloak Naruto provided each of them. Obito chastised Naruto again, noting that he was contradicting himself in saying that he felt closer to his friends when they died, yet was overexerting himself to protect them. Naruto quickly rebuffed Obito's logic, telling him that a loner like him would not understand. As the Ten-Tails grew more restless, he decided the time for him to become its jinchūriki had arrived. Noticing Kakashi preparing to warp the beast away again, Obito intercepted him noting that he was waiting for Kakashi to make another attempt. As they both use Kamui on the other, they were warped away to Kamui's dimension.

Ten Tails Arc
Fleeing back to the real world fatally wounded, Madara who sensed Obito's presence on the battlefield once again and noted that he had no more use for Obito and solemnly expressed his regret at not being able to fight Hashirama properly before becoming the Ten-Tails' jinchūriki. Madara then proceeded with his plan and caused the embedded chakra receivers in Obito's body to sprout out. As the right half of Obito's body turned black, the young Uchiha is seemingly forced to use the Outer Path: Samsara of Heavenly Life Technique in order to revive Madara. As the technique takes time to activate, Sasuke and Naruto race towards Obito to attempt to stop him from completing what appeared to be Samsara of Heavenly Life before Obito is cut down by Minato, who realised that he was the masked man who attacked Konoha years prior. However, it was revealed Obito managed to resist Madara's control from the start, and was instead sealing the Ten-Tails, foiling Madara's attempt at revival. Now the beast's jinchūriki, Obito was able to understand Paul Gekko's regrets and love for his Clan. Struggling to keep the tailed beats, Obito again finds himself reflected on what could have been with Paul Gekko seeing his thoughts. Seeing Naruto before him, stating that they are the same in how they lived as children, Obito begins seeing Paul Gekko and him along. Paul Gekko helps the defeated Obito, accepting his fate. Obito then states that Rin was the only light in his life and that losing her left him in darkness. He further explains that he felt the world was hopeless afterwards and that everything he's seen along his path confirmed that belief. Obito bestowed the Rinnegan to Paul Gekko to prevent Madara from obtaining it after Madara became the Ten Tails Jinjuriki. As Madara congratulated Obito for finding and removing the cursed seal he placed on him, the older Uchiha revealed that Obito's entire fall into darkness was in fact his doing; having the Three-Tails being sealed into Rin and ensuring her demise as Obito's pure heart would make him an ideal pawn once corrupted. As Obito began to absorb the horrific truth, Madara decided to reclaim his left eye from Obito.

Birth of Ventus Arc
Afterwards, Zetsu allowed himself to be absorbed by Kaguya Ōtsutsuki in order to revive her, which sent Obito falling to the ground as Kakashi looked on. Kaguya then teleported herself and the only living beings to escape the Infinite Tsukuyumi into a Village where the Battle of the Eclipse take Place. Obito awakens, his new allies explain the situation. Obito quickly sees through the mechanics of Kaguya's space-time manipulation and theorises that he can synchronize the power of Kamui in both his eyes to retrieve the captured Sasuke. Noting however that he is still too weak to make the journey both ways, Sakura and the Naruto-clone offer to use their chakra, to which Obito agrees, determined to bring back Sasuke even at the cost of his life. Simon from Fairy Tail, was able to protect Paul Gekko and Obito, in an act of selflessness, used Kamui to teleport the attack heading towards Paul Gekko to safeguard Kakashi and Natsu Dragneel. As Obito's body started to crumble, a sorrowful Paul Gekko tries to heal Simon and Obito. Accepting his fate and his role, Obito explained to Paul Gekko that as a result of fighting alongside him, he was happy and that he could once again remember the feeling of wanting to be Hokage. Obito then told Naruto that he knew he would definitely become the Hokage, before dying with a smile on his face as his body crumbled away. Obito then found himself in the afterlife with Rin, appearing as he did in his youth. Rin told Obito that she had been waiting for him. Apologising for taking so long and getting lost along the way, Obito told her that a lot of things had happened since then, as she reached out her hand. Filled with guilt, Obito tried to tell her that he failed his promise of becoming Hokage. However, Rin assured Obito that it was okay because he tried his very hardest. Taking Obito's hand, Rin told the young Uchiha that up to this day, she was always watching over him, and asked him to come with her to the other side.