Naruto Shippuden Episode 451 Page

While technically classified as a filler arc because it is not adapted from the original manga chapters, many fans consider the Itachi Shinden arc (Episodes 451–458) essential viewing. It provides critical psychological depth to Itachi, explaining the motivations behind his future actions that shaped the entire Naruto universe.

The episode opens with the devastating realization of the Infinite Tsukuyomi . As Madara Uchiha’s ultimate genjutsu takes hold, the world is plunged into an eternal dream. We witness various shinobi trapped in their own idealized realities: Dreams of a peaceful life with Naruto. Naruto Shippuden Episode 451

Envisions a life free from the "troublesome" responsibilities of marriage. While technically classified as a filler arc because

A young Itachi, only four years old, witnesses the aftermath of the Third Great Shinobi War. After showing mercy to a dying enemy who then tries to kill him, Itachi is forced to take his first life, leading him to question the value and meaning of existence. As Madara Uchiha’s ultimate genjutsu takes hold, the

Amidst this global trance, Team 7 remains protected within Sasuke’s Susano'o, the only barrier against the moonlight that triggers the jutsu. A Shift to the Past: Itachi's Light and Darkness