Ninjutsu is a martial art that focuses on stealth and precision. It is both an armed and unarmed martial art. Ninjutsu is an ancient martial art that has been integrated into countless martial art styles, mostly armed martial arts, and the traditional teachings of Ninjutsu have not been used in combat in centuries. There have been multiple variations of this martial art style. The two most notable styles shown within the series are the Kōsaka Style, which is a variation of the armed styles of Ninjutsu, and the Kuremisago Style, which is a variation of the unarmed styles of Ninjutsu.

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