 Kishimoto said that by chapter 16 he had conceived a storyline about Obito being an Uchiha and how it would affect Kakashi.During the series' first half Kishimoto introduced the Akatsuki terrorist organization, who seemed far stronger than the (younger) main characters.This led Kishimoto to change the series, giving the story a timeskip to when Naruto and his comrades would be able to face them.