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. Naruto Episode 100
The episode centers on the deep relationship between and his mentor, Might Guy . In the wake of his injuries, Lee reflects on his childhood as a "dropout" at the academy, where he was ridiculed for his inability to use ninjutsu or genjutsu. Naruto Episode 100