The Will of Fire Still Burns!

is episode 99 episode of the original Naruto anime.

Synopsis
Konohamaru, the Third Hokage's grandson, is unaccepting of Tsunade as his grandfather's successor and does what he can to prevent her inauguration. As Tsunade does research, hoping to increase the chances of Lee's surviving the operation, Naruto tries to convince Konohamaru that she will be a good Hokage. After Tsunade demonstrates her strength and healing abilities, Konohamaru decides Tsunade can be Hokage and that his grandfather won't fade into memory.