Ninjutsu

is one of the three main [[jutsu]] categories. Ninjutsu is the most nebulous of the three, and may most simply be described as anything that is not genjutsu or taijutsu. Most ninjutsu require chakra and hand seals, but this is not always the case since the mere usage of weaponry qualifies as ninjutsu. The huge range of ninjutsu's uses is illustrated by its several sub-classifications: medical ninjutsu, reincarnation ninjutsu, space–time ninjutsu, barrier ninjutsu, sealing jutsu, cursed seal jutsu and sensory ninjutsu.
Most ninjutsu use shape transformation, which deals with controlling the form and movement of the ninjutsu, while nature transformation deals with changing the ninjutsu's physical properties. Ninjutsu that use nature transformation tend to follow a naming convention of their nature type followed by a more specific name. With practice and experience, certain ninjutsu can become second nature to a ninja, allowing them to perform it at will.
== Background ==
Ninjutsu is a corruption of the Sage of Six Paths' ninshū created by his son, Indra, for use in combat;Fourth Databook, page 25 rather than using chakra to achieve understanding and create peace as the Sage intended, the development of ninjutsu resulted in mankind weaponising their chakra for war. Over time, shinobi came to believe that Hagoromo was the founder of ninjutsu rather than his eldest son, and the knowledge of ninshū was lost until its history was resurfaced during the Fourth Shinobi World War.
Years later, the scientist Amado Sanzu would determine that ninjutsu are, in essence, a rudimentary and inferior approximation of the Ōtsutsuki Clan's shinjutsu.Boruto: Naruto Next Generations chapter 75, pages 11-13
== Trivia ==
* The simultaneous use of ninjutsu and taijutsu is called "nintaijutsu".
* Jin no Sho describes Sage Art: Super Tailed Beast Rasenshuriken as "the most marvellous ninjutsu of all time".Fourth Databook, pages 290-291
* Amado considers ninjutsu as attempts to reproduce the effects of the Ōtsutsuki Clan's shinjutsu.
** Kinshiki says the chakra pills are desired because they allow the user to perform supernatural or divine acts.Boruto episode 62
== See Also ==
* 
== References ==
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