One of the most perplexing aspects of the New Era of Masashi Kishimoto's Naruto, as seen in its sequel series Boruto: Naruto Next Generations, lies in the ranks of two of history's strongest shinobi: Naruto Uzumaki and Sasuke Uchiha. Despite having saved the world and emerged as heroes of the Fourth Shinobi World War, Naruto and Sasuke remained genin well into adulthood, without ever advancing in rank after their efforts in the greatest conflict of their time.