KEKKAI NINJUTSU (Barrier Ninja Techniques)

[☆ F ☆]

Barrier (Kekkai) ninjutsu are techniques that involve the creation of barriers - forcefields made of chakra that may be laid out over a designated space to protect or conceal oneself, entrap enemies, or fulfill other applications. Barriers can be used for a wide variety of purposes, such as to prevent outsiders from entering; to prevent those inside from leaving the confines of the barrier, and even to prevent those trapped within from using certain techniques. Barriers have also been incorporated into the form of tags for both offensive and defensive purposes. The strength and efficiency of barriers seemingly depends on the type of technique used to create the barrier itself, and the ability of others to perceive, enter, or destroy the barrier.

Some Kekkai ninjutsu even seem to have a tie-in with Space–Time ninjutsu, by manipulating the very barrier of space-time continuum itself. Although barriers are meant to contain an area from outsiders from entering or vice-versa, they can be breached by many different ways. For certain barriers, users can willingly create openings for people to pass through, or by having knowledge of a certain handseal that can temporarily open it without dispelling it. Some barriers can even be broken by sheer force, though this depends on the strength of the attack in proportion to the field. It is very common for many barriers to be used in conjunction with sealing techniques.

---

RESTRICTIONS

- This requires the "Specialized Ninjutsu - Barriers" trait.

[☆ F ☆]

Kekkai: Fusagari no Jutsu (Barrier: Reclose Technique)
Rank: C
Range: Close (0m ~ 5m)
Type: Supplementary
Description: A technique used by the barrier shinobi that have observed or discovered their barrier to be partially broken, dispelling portions of it to allow otherwise unwanted entry and passage. After performing the required hand seals, a barrier is erected to re-close an opening of an pre-existing barrier. Simple and useful when attempting to maintain a barrier over a long period of time.



Gofū Kekkai (Five-Seal Barrier)
Rank: C
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary
Description: The user connects five "forbidden" (禁, kin) barrier tags to each other using their own chakra so that they form an enclosed location. One of the tags is applied to a central location that the user wishes to shut access to, while the other four are applied to surfaces in the surrounding area. So long as at least one of the tags remains in place, a barrier will be created over the central location that prevents it from being opened or in any way physically damaged. Those wishing to remove the barrier are advised to break into two small teams for maximum efficiency: one team focuses on removing the four surrounding tags, while the second team removes the central tag and immediately afterwards storms the stronghold. Because the tags, once located, are simple to remove, the users of this technique often pair the Five-Seal Barrier with a booby trap.



Kekkai: Houjin (Barrier: Method Formation)
Rank: B
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Supplementary
Description: This is a type of trap ninjutsu where an area is defined using a number of special tags. When the area is entered by an opponent, a barrier is created. The barrier's properties vary depending on the tags used; one can use explosive tags, which allows it to serve as a sort of booby-trap, while non-lethal tags can be used so that entry into the area is prevented. To prevent the trap from being noticed, the individual tags are placed in hidden locations, such as the shade of trees. Even if the tags are discovered, actually disarming them is very difficult, for which reason it's generally safer to simply avoid the area.



Kekkai: Tengai Hōjin (Barrier: Dome Method Formation)
Rank: B
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary
Description: This technique allows the user to create a spherical detection barrier with the user at the centre. At the user's command, the detection barrier can expand, grasping everything in the surroundings. The users can also detect anything that moves inside the barrier space with their own "sense". As the user moves, the barrier will follow them.



Kekkai: Shishienjin (Barrier: Four Violet Flames Formation)
Rank: B
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Supplementary, Offensive
Description: A team of four stands in a square formation and then performs this technique, erecting a solid barrier between them, with the casters of the barrier remaining inside. The barrier is made of purple flames, which will engulf those who come into contact with it, thus preventing anyone from entering or leaving the area. Because the barrier relies on all four users to maintain inside, attacking any one of them can bring down the barrier. To prevent this from happening, members of the Sound Four extend secondary barriers around themselves, making breaking out even more difficult.



Kekkaifu: Gansōkō (Barrier Talisman: Armored Eye)
Rank: B
Range: Close (0m ~ 5m)
Type: Defensive
Description: This technique was created by and for those who possess a unique and special body parts they simply do not want to part ways with. When a specific part of the user's body is targeted, this technique is automatically activated. The talismans move to cover the specific body part and form a barrier to protect it. It's most famous application is with those that have unique doujutsu, wearing patches and talisman over the eye in case they ever face a situation where an enemy attempts to extract it.



Kekkai: Kinsoku (Barrier: Confinement)
Rank: B
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Supplementary
Description: This barrier technique requires multiple users; the more that use it, the more effective it is at confinement. After using themselves as the perimeter for the barrier, a barrier is erected and then takes on a dome shape, capable of trapping even the largest of beasts, if for a moment's time. Only by releasing the most powerful of chakra levels will the barrier get tested, hence why the more users that employ it means the more effective the barrier will be. However, the barrier does not prevent people from entering, as anyone is able to enter it without any issues. This is done so that if the barrier begins to crack, reinforcements can come in to attempt to distract the target while the barrier is reinforced. As such, this barrier is best used when the users are in a safe area, such as containing an immediate threat within their own hidden village.



Shikokumujin (Four Black Fogs Formation)
Rank: B
Range: Close (0m ~ 5m)
Type: Supplementary
Description: A cooperation barrier technique requiring four users, the casters stand at four directions around their target as they, in unison, perform this technique. They create a dark, dense fog high in the air that descends on the target, engulfing them and creating a powerful barrier that seals them off from all outside forces, even death. This technique is excellent to preserve the life of a dying ally, or to halt the effects of any harmful medicine or status effect they may be under, that normally would not be so easily countered. It can also help accelerate any type of evolution of change the target is undergoing without suffering interruption.



Kekkai: Isshi Tōjin (Barrier: String Light Formation)
Rank: B
Range: Close (0m ~ 5m)
Type: Supplementary
Description: This barrier is designed to prevent anyone from leaving its confines. Once within a certain range of the target, the user erects the barrier underfoot, which appears in the form of kanji forming several sized circles within each other, with the caster at the very center. If caught, this seal renders anyone within the seal formula incapable of escaping. Despite its strength, it can be overpowered with a strong enough burst of chakra, especially if the victim has a stronger chakra presence than their captor.



Kekkai: Tajū Isshi Tōjin (Barrier: Multiple String Light Formations)
Rank: A
Range: Close (0m ~ 5m)
Type: Supplementary
Description: An upgrade to the String Light Formation, not only is the holding capabilities of this technique expanded, but it is designed so that multiple people use the technique at once, making escape nearly impossible. The more users that know this technique, the more that they surround their target, ensuring they cannot escape, even with the strongest bursts of chakra. If someone is trapped in this, it is often times easier to escape by having an ally attack the casters than attempting to escape with great bursts of chakra.



Saisei Kekkai (Self-Repairing Barrier)
Rank: A
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary
Description: The Self-Repairing Barrier is a cooperation ninjutsu that is made more effective by linking chakra from a team of ninja. Each shinobi create their own barrier which, if damaged, will constantly repair itself with said chakra that emanates from their bodies. The barrier also prevents those outside of it from sensing anything inside it through traditional methods. The more shinobi that make their own barrier and form them together, the less taxing the repair will be, and the more resilient the overall barrier will be.



Kekkaimon Gofūjutsu: Hachimon Heijō (Barrier Gate Five Seals Technique: Castle Closing Eight Gates)
Rank: A
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary, Offensive
Description: This technique requires a scroll on which a blueprint of a particular area will be mapped. When activated, it causes four giant gates to emerge north, east, south, and west of the targeted area. Afterwards, the gates form a barrier around the area. This barrier has a very high durability, and anything that makes contact with it is immediately engulfed in flames. The only way to pass through the barrier unharmed is with a special seal. This is excellent for making sure a hideout or area remains impenetrable, as once the barrier is formed, the user does not need to tend to it.



Kekkai: Shippū Jinra (Barrier: Hurricane Thunderclap)
Rank: A
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Supplementary, Offensive
Description: A cooperation barrier technique requiring four users, the user and his group surround and entrap their opponent in a pyramidal, rose colored glowing barrier, which will then cause the barrier to explode, injuring or, ideally, killing the person within it. The explosions from within the barrier are not from tags, but rather from bursts of chakra coming at the target from all sides. This technique's lethality can be avoided if the victim has a means of deflecting, absorbing, or blocking chakra; on the other hand, if the target has chakra attacks as a weakness, this attack doubles in lethality.




Hōriki Kekkai: Chabashira (Dharma Power Barrier: Auspicious Signs)
Rank: A
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Offensive, Defensive
Description: This defensive barrier is effective at keeping the user safe from most harm, but requires them to stand still as the barrier fends off attacks. Six green poles emerge from the ground, erecting a barrier from all sides and above to attempt to repel incoming attacks. As an extra protection, the barrier will also unleash a barrage of chakra senbon from the hexagram-like seal on the crown of the barrier at any opponents that get nearby in order to attack. Only a strong enough technique can pierce the barrier.



Kekkai: Shisekiyōjin (Barrier: Four Red Yang Formation)
Rank: A
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Defensive, Supplementary
Description: A powerful barrier formation noted to only be usable by those of the highest calibre, whereby four shinobi, standing in a square formation, erect a large barrier that is red in color. It was stated to be several times stronger than the Four Violet Flames Formation, and is highly malleable and elastic. When assaulted by a strong attack, the barrier simply distorted its shape, forcing the brunt of the attack upwards while it remains completely intact and reformed to its original position. As an added benefit, its users can create openings within the barrier to allow passage.



Kekkai: Mugen Hōyō (Barrier: Infinite Embrace)
Rank: A
Range: Close (0m ~ 5m)
Type: Offensive
Description: A cooperation barrier technique requiring at least two users, this special, square shaped barrier of bright purple chakra subdues the enemy by pushing down on them and rapidly draining their chakra. It's quite difficult to resist it, but with enough of a chakra presence, the target could potentially fight out of it. In order to maintain the strength of the barrier, a group of individuals must perform it simultaneously. The minimum two will place themselves on opposite sides of each other, with the target in the center of the square. With three or more users, the strength of the barrier increases, making it harder to escape, and making the draining effect quicker and quicker.



Kekkai: Tajū Mugen Hōyō) (Barrier: Multiple Infinite Embraces)
Rank: S
Range: Close (0m ~ 5m)
Type: Offensive
Description: This technique has exactly the same effect as Infinite Embrace, but this version is much larger and stronger as it is capable of completely subduing and incapacitate large creatures and beasts. The same mechanics are applied from the Infinit Embrace, in that the barrier pushes down on the large beast, preventing it from escaping and draining their chakra. The minimum three will place themselves on opposite sides of each other, with the target in the center of the square. With four or more users, the strength of the barrier increases, making it harder to escape, and making the draining effect quicker and quicker.



Kekkai: Shihō Fūjin (Barrier: Four-Corner Sealing)
Rank: S
Range: Close (0m ~ 5m)
Type: Supplementary
Description: This technique was designed for the purpose of sealing a being of great chakra concentration, or some form of large beast or summon. The technique is performed with four separate scrolls and a sample of blood similar to the requirements for Kuchiyose. Good chakra control and concentration are needed to perform the sealing technique. To use this technique, a scroll is needed to seal the numerous amounts of chakra in its own dimension, permanently. While sealing, the users are vulnerable to enemy attacks. This technique has three stages: [1] "Search": the barrier is erected to locate the target; [2] "Bind": the barrier is then stretched out above the target; [3] "Lock": the barrier is lowered and the sealing begins. While this technique takes time to prepare and execute, if successful, the results can be permanent, that is, unless those that cast it repeat the process to reverse it.



Kekkai: Shikokudajin (Barrier: Four Black Snakes Formation)
Rank: S
Range: Close (0m ~ 5m)
Type: Supplementary, Offensive
Description: One of the ultimate cooperation barrier techniques requiring four users, the casters stand at four directions around their target as they, in unison, perform this technique. The four users stand in a square formation, erecting a large, purple hued barrier between them. On command, it begins to incinerate its contents, and those that are trapped inside only have so much time to attempt an escape before it is too late. This technique is also useful for eliminating structures and buildings, leaving no trace evidence of their existence behind.



Kuikorosu Kekkai Daien Hasamu (Devouring Barrier Sphere Trap)
Rank: S
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary, Offensive
Description: At some point, the user of this technique will set up an array of barrier tags, which are camouflaged by surroundings. If the target is not aware of the camouflaged tags, the presence of the target will ignite the trap automatically. Once activated, a dark red chakra sphere will form, slowly shrinking and trapping the target inside. Anyone caught in the trap as it activates will be compressed in its container, devoured, and crushed. The trap can either be dispelled by discovering the tags and destroying them, or by creating a powerful enough force to counter the constriction - the latter requiring an incredible amount of force. When it is dispelled, it will be shattered like broken glass and disappear.



Kanchi Kekkai (Sensing Barrier)
Rank: S
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Supplementary
Description: The Sensing Barrier is a giant, dome-shaped barrier placed over a wide designated area. The barrier is not visible to the standard eye; when viewed with certain dōjutsu, it can be seen that there is a design of several circles which have the kanji for boundary (界), and barrier (結界, kekkai) inscribed in them. This barrier has often been used by Kage to ensure no hidden invaders enter the village. Because the barrier is comprised of a "chakra formula" that is designed to accept only those deemed worthy by the caster, the user can often change these signatures at any time - a tool especially useful when a Kage is dealing with the threat of a missing-nin.