Unshūmusan (雲集霧散, "gathering like clouds and vanishing like mist") is often addressed as the most complicated and dangerous kenjutsu style within Kirigakure, and was invented by Yagura during his younger shinobi days, and one of the reasons for his ascension to Mizukage.
As-of-now, this style is used by the leader of the Seven Ninja Swordsmen of the Mist, Sasaki Yūruō. He teaches it to his students, so the style can continued to be utilized, even ftare his death. Unfortunately, the style is so demanding none of his students has portrayed the ability to utilize it correctly. The style has also been adopted by members of the Kazuki Clan within Konohagakure, who utilize their unique muscle stimulation and free-form training to replicate the effects of the Eight Gates.
The style focuses on great outbursts of speed and power, which are of such power the human body normally cannot achieve them. Thus, in order to use Unshūmusan, "controlled release" of the Eight Gates is required. This consists of the user opening one or more of the Eight Gates for an instant only, immediately closing them afterwards. This short outburst of power allows the user to go beyond their limits for a second, while overcoming most of the drawbacks related to using the Eight Gates. Students commonly have problems with this, being unable to achieve enough control to close the gates once opened. However, masters like Sasaki can open and close even all of the Eight Gates numerously, allowing for attacks harboring unseen devastation. It seems that this controlled release applies mostly to the Togijutsu techniques.
Unshūmusan consist of an extensive set of techniques, each one focusing on a different aspect of battle. Although none of these posses a clear numerical order, it's clear that some are on a far higher level than others, and there are several patterns within the techniques. Over the years, the technique became very infamous due it's killing capabilities, resulting in numerous efforts from the other village to copy them, although none of them succeeded in capturing the actual power and precision behind the style. It should be noted that the proficiency of the user is also very important regarding the lethality of the techniques, as a master can do more damage with the most basic of techniques than a novice could ever do, even with the strongest attack of all.
There seem to be two major branches within the style: Togijutsu and Donjutsu. Togijutsu centers about killing or fatally wounding the opponent, while Donjutsu centers around merely knocking out or holding back the opponent without dealing much harm to him. The latter is mostly performed with the flat side of the blade, the guard or the inward curving side. It seems Unshūmusan isn't a style that can be used with any sword, shown when the katana Sasaki picked up from a dead soldier shattered after only one, basic technique.
|Togijutsu (研ぎ術, "Sharpened Techniques")|
|Gen'in Kyūmei (原因究明, "tracing something back to its origin")||A two-step attack famed to be nigh unblockable in some areas of the Land of Water. The first step is a single, clean cut performed at amazing speeds, performed with a strength great enough to cut through iron. While this first step is generally fatal to unexperienced opponents, even extremely skilled blade-users have problems with defending against the second. In reference to the name, the second step consists of "tracing back one's footsteps", essentially flicking the sword backwards and leaping back to the original position, cutting the opponent for a second time, right above the first slice. When the technique has ended, the user ends up back at his original position, giving some experts even the ability to utilize this deadly power unnoticed.|
|Tenkara Oriru (天から降りる, Descend from Heaven)||An attack initiated in a similar way to Yūeki Mugai, namely a stomp to the opponent's abdomen. This forces the opponent to bend over, allowing for the user to slip through their legs and jump up behind their backs, at such speed this entire process commonly remains unnoticed by the victim. The actual attack is than initiated by the user curling up in mid-air and spinning at extremely high speeds while falling down. while spinning, the blade is held out, creating the effect of an automatic saw. Using this technique correctly allows the user to completely split he enemy in half, but the technique itself is considered unnecessary cruel when used on a random opponent.|
|Zenshūryō Suto (全数終了スト, All-Ending Strike)||An attack said to destroy everything it touches without any destructive force, and one of the hardest techniques for any student to master. Using a similar principle as a one inch punch, the user aims for the vulnerable spot at the back of the neck of an opponent from incredibly short range, seemingly without any force behind it. However, the strike doesn't cut into the skin, but rather spreads a strong vibration through the body, which will travel through the Chakra Pathway System and continue to strengthen itself with the victim's chakra, until the pathway itself is teared apart by the vibrations and the victim dies, with no visible injuries from the outside.|
|Kirijutsu (斬り術, "Beheading Techniques")|
|Mikazuki Kiri (裏斬り, Crescent Moon Beheading)||One of the basic techniques, the user shortly enhances their physical capabilities to swing their sword in a single large arc, which occurs with such ferocious velocity that the technique can be employed in situations where only a very limited time to react is available. The swing can be used to counter attacks from multiple opponents simultaneously. The technique receives it's name due to the entire movement being reminiscent of a crescent moon. It was recently portrayed that Kumogakure had developed it's own variation variation, although it carried far less destructive capability.|
|Uragiri (裏斬り, Reverse Beheading)||The user does a powerful spin, enhanced by the chakra outburst, generating the momentum needed to slash at any opponents behind them. The user can also utilize this spinning motion to trick an enemy that's in front of them. The enemy is fooled into thinking the user will attack them, but instead the user attacks the targets behind the user. As is the case with Mikazuki Kiri, Kumogakure has developed it's own variation, although lacking the true capabilities of the original like the former.|
|Hekigiri (僻斬り, False Beheading)||The user opens with a normal, straightforward attack, yet at the last moment performs a quick step sideways, leaving behind an afterimage on the spot of the original step. This allows to trick enemies, whom will estimate the striking area of the attack incorrectly, and will be surprised as they find out the strike is instead received a few meter to the left or right of where it should be. The entire process is similar to Uragiri, only this attack is performed sideways, not backwards.|
|Omotegiri (表斬り, Front Beheading)||A simple, straightforward slash which still has the potency of doing a lot of damage. Like other Kirijutsu, Kumogakure has created his own variant, which is nothing but more than a slight empowered slash. However, when the original is performed by a master such as Sasaki, the slash itself creates a current of slicing wind, capable of uprooting trees and creating cracks in the ground. It is perfectly demonstrated in this technique how an Unshūmusan master can create devastating effects with nothing but a simple slash.|
|Sōtōryū Kiri (双頭龍斬り, Twin-Headed Dragon Beheading)||Combining the principles behind Mikazuki Kiri and Uragiri, the user performs a powerful spin at such speed t is invisible to the human eye, while using the full extent of his muscle strength for a split second to swing their sword in a gigantic circle, cutting apart almost anything within thirty meters of the users. During it's first portrayal, it managed to cut down several buildings in it's way without any visible loss of power. Besides it's extreme destructive abilities, this technique can also be used as an "absolute defense", similar to the Hyūga's Eight Trigrams Palms Heavenly Spin, utilizing the sword's omnipresence to block any incoming attack. This is considered the hardest and strongest technique within the Kirijutsu pattern.|
|Donjutsu (钝术, "Unsharpened Techniques")|
|Yūeki Mugai (有益無害, "harmless and inoffensive")||A very simple technique, which doesn't require the momentary opening of any of the Eight Gates. This is mostly used to harmlessly disable an incoming opponent. Just before the opponent prepares to strike the user, he partially unsheathes his blade, driving it into the victim's abdomen and knocking them to the ground. Although intended to be harmless, this can be used to break ribs or cause internal organs to rupture when used with enough force. Generally, however, this is simple used if the user doesn't wish to fight the opponent, or to reason them before they demand a fight with the user.|
|Ganmei Korō (頑迷固陋, "incapable of sound judgment")||One of the few Donjutsu techniques that actually uses the sharp side of the sword to draw blood, this technique consist of the user parrying an incoming attack by twirling his sword around his opponent's, and then aiming to cut off his pinkie finger. While this seems useless at first, the pinkie is essential in japanese swordplay, as it's used to grip the handle, instead of the usual index finger. Fighting without a pink is essentially impossible, except if the disabled has trained with it. Thus, this results in the opponent being temporarily disarmed.|
|Hanka Shiizō (半跏思惟像 Half-Lotus Position Statue)||A Donjutsu position which is said to be inescapable for the victim once performed, the user jumps up and, using his enemy's shoulders as support, does a one-handed handstand while holding his blade to his opponent's throat with the other. While seeing unnaturally hard for a normal person to do, the user actually shifts his weight into a position where the victim is forced to carry his whole body. When this position is achieved, the opponent is rendered at the mercy of the user, as the former cannot attack without the user slitting his throat, and trying to shrug him off would mostly likely result in a broken neck or spine. This is usually utilized for interrogation, but can be employed in general battle, as Sasaki demonstrated, if the user possesses enough speed and reflexes to kill the victim before another enemy attacks him in this vulnerable position.|
Unique Techniques Edit
|Sengizumirā (千傷ミラー, Thousand Cuts Mirror)||A highly demanding attack invented by Sasaki Yūruō, it consists of a series of slashes, all of them in the same pattern an from the same angle, performed in an instant through the use of the incredible speed enhancement granted by the release of multiple gates. The attack happens so fast observers cannot note when the user has drawn or sheathed his blade, nor do the victims realize they have been attack until several seconds later - when the cuts are carved into their bodies. This technique is noted to "shatter any defense", but visible takes it's toll on Sasaki's body and stamina, despite being one of the fittest men in Kirigakure.|
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