The Five Kage's Decision

Summary
Tsunade has a meeting with the Konoha Council where she notifies Homura and Koharu about the seriousness of the Akatsuki threat, led by none other than Madara Uchiha. In Kumogakure, the Kumo Council discuss gathering intelligence from the other four nations. Killer B is also present at the meeting, although he focuses his time and efforts in improving his rap lyrics, unaware that Kisame is spying on the meeting through the Samehada blade.

In Konoha, Tsunade informs Sakura, Shikamaru, and Kakashi of the Allied Shinobi Forces' upcoming war against the Akatsuki. Sakura is heartbroken at the possibility of fighting against Sasuke and is told by Tsunade to keep an eye on Naruto. Shizune alerts Tsunade that Naruto suddenly disappeared from Ramen Ichiraku. Believing that the Akatsuki may have taken him, they begin a village-wide manhunt for him. Fukasaku sends Naruto back to Ramen Ichiraku, where he is found by Sakura and brought back to Tsunade's office. There, he tells them that he was reverse summoned to Mount Myōboku in order to be given a prophecy by the Great Toad Sage — that he would encounter an octopus at a resort and that he would fight Sasuke.

A few days later, the Fourth Raikage calls for a kage meeting in Kumo, where the five leaders discuss intelligence and strategies for the upcoming Fourth Shinobi World War. Tsunade initially protests against the other kage's idea to keep Naruto and Killer B in hiding, but acquiesces when the other kage stress on the importance of it, with Gaara adding that Naruto has a tendency to be careless and reckless when it comes to saving a friend. A tells them that he has a perfect spot to secure Naruto and B. In private, Tsunade asks the Raikage if he could convince B, who has full control over his tailed beast, to teach Naruto to do the same. At first, A refuses, not wanting to increase Konoha's military strength by giving them full control over the Nine-Tails. However, Tsunade convinces him that at some point both jinchūriki would be needed on the battlefield, and A agrees, telling her that the hiding spot he chose for the two is also a training ground where he used to train with B himself. Satisfied, Tsunade returns to Konoha and notifies Naruto that he is being assigned an S-rank mission on an island located in Kumo, with Yamato tagging along as captain.

Trivia

 * A poster of Naruto the Movie: Blood Prison was shown on a wall in the entrance hall of Killer B's enka concert.