Asuka and her friends learn the martial art of Ninjutsu at a secret academy.
The Hanzo shinobi continue to fight one-on-one against the Hebijo shinobi.
Kiriya decides to ramp up the girls' training with a mountain-climbing training excursion.
Kiriya's training of the girls turns especially strict.
Hibari breaks into Hanzo Academy's depository and takes the super-secret ninja art scroll.