Fūinjutsu

are a type of [[jutsu]] that seal objects, living beings, chakra, along with a wide variety of other things within another object. Fūinjutsu can also be used to restrict movement or unseal objects either from within something or someone.
The presence of a seal is marked by the appearance of formations of technique formulae, kanji, or else other kinds of symbols (likewise with Summoning Techniques).
A unison of barrier ninjutsu and fūinjutsu is referred to as a .
In a similar fashion to genjutsu, fūinjutsu can be undone by combining specific seals with a command.Boruto, chapter 23
== Trivia ==
* An imbalance is created when an odd-numbered seal is placed on top of an even-numbered seal and vice-versa.Naruto chapter 91, page 12
* The shinobi from Uzushiogakure in the Land of Whirlpools were specialists in the art of fūinjutsu, to the point that their nation was eventually destroyed due to the fear others had of these techniques.Naruto chapter 500, pages 3-4
* In the anime, a precursor of fūinjutsu predated ninjutsu itself in the form of the Secret Treasure of the Toads, which stored a massive amount of natural energy.Naruto: Shippūden episode 462
*Isshiki Ōtsutsuki utilised a seal that will kill anything sealed within if it's broken open in anyway except if undone by himself. However, the seal can be bypassed by Space–Time Ninjutsu.
== See Also ==
*
== References ==
Category:Jutsu Type
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