On the night of the kyubi attack the nanabi also appeared and attacked the village as well. Instead of the 4th Hokage it was the 3rd hokage who sealed the kyubi and nanabi into Naruto and Fu, respectively. Naruto's life changes on night during a full moon...for better or for worse, is up to you to decide. NarutoxFuxKarui MAJOR SASUKE BASHING! minor Sakura Bashing