A person who uses Ninjutsu is called a Ninja. Ninjutsu is not a martial art. It is an original art of warfare that developed mainly in Iga, Mie Prefecture, and Koka, Shiga Prefecture.
Now, do you know what sort of work the Ninja did?More

Here is an introductory digest of logical Iga-ryu Ninjutsu tradition. It is useful even in our modern day, so by all means, please learn it. More