The episode slows its frantic pace to weave in a flashback that many fans found divisive but is thematically vital. We see a young Kakashi and Obito, their rivalry defined by their different ways of handling pain.
: When Kakashi and Obito stand side-by-side against Madara, their Kamui powers synchronize. This doubling of speed is the only reason Obito is able to successfully teleport to the Kamui dimension to save Naruto, even while being targeted by Madara’s Truth-Seeker Orbs . The Burden of the Past 415 : The Two Mangekyo
: Obito reflects on the "hole" in Kakashi’s heart following the death of Sakumo Hatake. It serves as a reminder that their destinies were intertwined long before Rin’s death. The episode slows its frantic pace to weave
: We are reminded that the Mangekyō Sharingan is born from "extreme emotional trauma". Because their eyes were linked, they both felt the same shattering moment when Rin died, yet they spent the following years using that shared power to destroy and protect from opposite sides of the battlefield. Final Redemption and the New Battle This doubling of speed is the only reason