Naruto Episode 107 -

The episode highlights Sasuke's descent into darkness as he realizes his "sword to protect bonds" (Chidori) was unable to scratch Itachi, while Naruto's power is rapidly surpassing his own.

Driven by a need to prove himself, Sasuke challenges Naruto to a fight on the hospital rooftop. Naruto Episode 107

Episode 107 is widely considered the beginning of the arc. It is a "canon" episode, meaning it follows the original manga's storyline directly and is essential viewing for understanding the characters' motivations before the jump to Naruto Shippuden . The episode highlights Sasuke's descent into darkness as