Mending

The classic 'Naruto get's sent to the past' fic. Naruto get's sent to the past with the help of Kurama with a small condition. Will Naruto be able to stop the war before it happens? Will he be able to save the other Tailed Beasts? Will he be able to save Uchiha Sasuke from going blood thirsty for revenge? Pairings up to vote, full summary inside. M to be safe