We’ve all been there. You’re 6 years old, you’ve been at the Academy for three hours, Iruka-sensei is droning on about the history of the Daimyo’s tea tax, and all you want to do is learn how to walk up a tree without breaking your neck.
: Training with Tsunade to learn rapid healing, then pushing one's body to its limits to build endurance. Konoha Training Cheats