Unlike the episodes immediately following it (Episodes 101–106), Episode 100 is canon and based directly on the manga.

The episode first aired in Japan on September 1, 2004.

Tsunade, the newly appointed Fifth Hokage, is searching for a way to treat Lee’s shattered body. She reveals that the surgery to fix him is incredibly risky, with only a 50% survival rate (later revised to 58% as she continues her research).

In a powerful display of support, Guy challenges Kakashi to a game of rock-paper-scissors to lift spirits. After losing, he runs 500 laps around Konoha as a "self-imposed rule," inspiring Lee to join him. Guy famously promises Lee that if the surgery fails and Lee dies, he will die right alongside him. The "Nindo" of Hard Work

Naruto Episode 100 , titled , is a milestone episode that focuses on the emotional and physical recovery of Rock Lee following his devastating defeat by Gaara during the Chunin Exams. Plot Summary