"I still remember the world from the eyes of a child"- Itachi

All artwork is owned by Lily a japenese artist, I don't own her work and never will.
SPOLLIERS BEWARE!
Madara revealed that before Konoha came to being, there had always been competition and battles between the two greatest shinobi clans: the Senju clan and the Uchiha clan. However, a peace treaty was signed between the two clans but Madara suspected that the Senju clan would never keep their word. After the Fire Country was established, Madara was furious that Hashirama Senju was named the First Hokage and left the country. When the Nine-Tailed Demon Fox attacked Konoha, the upper echelon suspected the Uchiha clan was behind the attack since their Sharingan can control the fox demon. Some of the members from the Uchiha clan became rebellious upon knowing that suspicion and formed a coup d'etat against Konoha. In response to that, Konoha stationed a spy amongst the group: Itachi. Because of this, the manga states that it was "The beginning of Itachi's hell."

Itachi had been four years old during the Third Shinobi War. Due to the tragedies he had witnessed, he became a pacifist and put the stability of the village above all else. Itachi loved the village and had no interest in clan politics. However, he was ordered by his father to enter ANBU as a spy for the Uchiha. Itachi realized that if a clan as powerful as the Uchiha instigated a rebellion, the entire Land of Fire would feel its effects, weakening the nation. Such a trauma would have undoubtedly been seen as an opportunity for attack by the other nations, thus starting a Fourth Shinobi War. To circumvent such a disaster, Itachi betrayed the Uchiha, becoming a double agent for the village. Although the Third Hokage made attempts to negotiate with the clan, the Uchiha continued to plan their coup d'etat. Itachi approached Madara, who at the time was seeking revenge on both the Uchiha and the Senju clans. In return for the safety of the village, Itachi offered to help Madara slay the Uchiha clan. Itachi's mission was thus to eliminate every Uchiha and leave the village forever. However, when the time came, Itachi was unable to overcome his love for his little brother, Sasuke. As a result, he told his brother he had slain the clan merely to test his abilities, and gave Sasuke the goal of revenge in order to make Sasuke stronger. In order to ensure Sasuke would not live in shame because of his heritage, Itachi implanted the idea in Sasuke that the Uchiha clan was a noble member of Konohagakure and that he had killed them for petty reasons. Itachi begged the Third Hokage not to tell Sasuke the truth, and also threatened Danzo to prevent him from harming Sasuke. After his last mission for the village was completed, Itachi spent the next several years planning his own death at Sasuke's hands.


Itachi's last smile to his brother.Madara explains that Itachi came to the village in order to warn Danzo and the two elders that he was still alive. Also, he planned his whole fight with Sasuke just to give him Mangekyo, to take out Orochimaru's cursed seal, and to die in front of him, which was his life goal and final mission. It is revealed that Itachi wanted to die by Sasuke's hand so that he would become a hero for avenging the Uchiha clan. During the fight Itachi was plagued by an illness that would've killed him earlier had it not been for medicine and his love for Sasuke. For the sake of Konoha and for Sasuke he was willing to die as a criminal and a traitor. He traded honor for disgrace and Sasuke's love for his hatred, and even then he died smiling. He entrusted the Uchiha name to Sasuke so that it would be proud again. In a flashback, it is revealed that Itachi, despite his love for his brother, did not trust what Sasuke would do so he gave some of his power to Naruto as a failsafe (what power is currently unknown) in case if Sasuke attacks Konoha.