The anime was renamed "Kaze no Fujimaru" in order to associate it with its sponsor, Fujisawa Pharmaceuticals.

Fujimaru grows until he becomes a gifted young man who can control the wind by learning ninjutsu.

He knows two strong techniques: 'multiplication' (which allows him to confuse his enemies by creating illusions of himself) and 'leaves' (which helps him to run away behind a wind swirl).

Fujimaru has two goals: to see his mother again and to find the 'Ryuen Book', a handwritten parchment that contains great but dangerous techniques.

In the end, Fujimaru attains both goals: he runs into his mother and finds the parchment, but he decides to destroy it because it would be too dangerous in Japusai's hands.