Before the Demon Brothers could kill Naruto, Sasuke acts and stops them. They turn their attention to Tazuna, causing Sakura to prepare to protect him. Before the brothers can execute the attack, Kakashi appears and neutralizes them, as it turns out, only pretending that he was killed so he can figure out who their target is. Obviously, the mission to protect Tazuna will be more difficult than the C-rank mission it was assigned to, causing Kakashi to decide to go back in. Naruto, angry at himself for his helplessness, demands that they complete the mission no matter how difficult it may become, promising never to back down from a problem.