his father's suicide after a failed mission, Kakashi adopted the philosophy that the success of a mission must always come first, over the welfare of his comrades. Kakashi is assigned by his teacher, Minato Namikaze, to lead a mission that would turn the current war in Konoha's favor. When his teammate, Rin Nohara, is captured by enemy ninja, his other teammate, Obito Uchiha, convinces him to rescue her. After finding Rin, an enemy-induced cave-in crushed Obito's right half. As his dying wish, Obito has Rin implant his newly acquired Sharingan into Kakashi's freshly damaged eye socket as a parting gift. His new eye in place, Kakashi flees with Rin as the cave collapses, completing their mission. Shortly after this event, Kakashi has to rescue Rin, who is kidnapped by Kirigakure, again; however, he learns that the Kiri, under the influence of Madara Uchiha, have made Rin the host of the Three Tails, Isobu. Rin requests Kakashi kill her so she may not be used as part of a Trojan Horse scheme against Konoha, but Kakashi is reluctant. She eventually forces herself on the way of Kakashi's Lightning Blade that he originally directed at the pursuing Hidden Mist ninja, killing her. An anime exclusive flashback arc in Naruto Shippuden covered Kakashi coping with what he endured during the war as he becomes an ANBU operative during Minato's time as Hokage and influences Yamato into becoming a member of the ANBU as well. Once relieved of duty in the ANBU, Kakashi becomes a Genin instructor prior to the events of Part I. Two-and-a-half years later in Part II, Kakashi reforms Team 7, with new arrival Sai in Sasuke's place. During the gap in time, Kakashi hones the gained from Rin's death to master the Kamui ability that allows him to send any targeted object to another dimension. Because his students are now capable of taking care of themselves, Kakashi takes a more active role in battles, particularly those with the criminal organization Akatsuki. When the Akatsuki leader, Pain, invades Konoha, Kakashi engages him in battle, and dies from exhausting all his energy. However, after his confrontation with Naruto, Pain decides to use all of his remaining power to revive all those killed in the battle at Konoha, including Kakashi. Following a brief encounter with Tobi, the Akatsuki's true leader, Kakashi becomes one of the generals to participate in the war against Tobi's