NOVEL NEXT Chapter 3: Log 3: Saturation Subduing Technique
Log 3: Saturation Subduing Technique
Due to the danger of this Jutsu, it is classified as a forbidden Jutsu. Only cast this Jutsu with the use of shadow clones.
You know what, let's go more in-depth on that saturation diver-killing idea. Did you know your body can acclimate to going deeper in water depth at any pace? The only issue is breathing so usually we had our divers breathe a high helium mix of air. However, this is not the same when leaving high-pressure environments. The human body without chakra can only acclimate in reverse about one hundred feet of water in depth a day.
The Byford Dolphin was a deep-sea welding accident. The chamber on the surface was pressured to about three hundred and thirty feet of water pressure in depth. This means that the internal pressure had an additional nine atms of pressure. Introducing this environment of 146.7 PSI to the surface of 14.69 PSI produced 220 MPH winds. In nearly .12 seconds the vessel's pressure hit 1 atmosphere: the average human reaction time is about .25 seconds. The whole chamber of pressurized air, completely decompressed through a 2-foot crescent-shaped opening anything blocking it was exposed to about 222,500 Newtons of force. It takes 4000 newtons to break mundane human bones.
Even if a ninja's cells are powered by Yang energy and thus stronger than mundane people the cells can still die due to the expansion of the nitrogen gas bubbles that have dissolved in their blood. This expansion is so exothermic that it boils the blood denaturing the proteins leaving only grease in the person's arteries and organs.
They can also die due to a small hole in the pressure container creating a pressure differential and vacuuming up the wind with enough speed to rival the greatest of storms; a category 5 hurricane is 157 mph. A wind speed of 150 mph is only 68 psi.
Back to the Byford Dolphins, four people died in the pressure chamber. Three were due to all either blood boiling away and denaturing into the greatest grease-clogged arteries and one guy was spaghettified by the wind which launched a several tons of metal diving bell.
In the best use case, this technique is used in an enclosed space like a building or barrier. Using this technique in a wide open space without a strong enough nature change will leave this technique ineffective. If you at this level of nature change, creating blades with far more concentrated power would effectively subdue your enemy. However, if your enemy can heal from fatal damage quickly and you need an instantaneous kill technique destroying the body too greatly for any revival technique then this skill may be used.
The reason you should learn this skill is as an absolute subduing technique due to the fact once a person is stalled either by a Genjutsu and trapped in the barrier or is caught in a building the one trapped by this Jutsu is unable to escape alive without an Iryojutsu capable of Increasing the rate of healing decompression sickness while you slowly lower the pressure. Any attempt to escape is death, even reverse summoning.
Training
Step one: Cast shadow clone Jutsu. With the chakra manipulation methods from the Rasengan. Upon releasing one's chakra, shape that into a domain with enough rotation to create an enclosed space to saturate your chakra. This step can be skipped if you trap an enemy in a Genjutsu and then confined with an earth Jutsu, or sealing like the Four Corner sealing barrier.
To train this it is advised to practice creating a solid spherical chakra construction larger and tougher. Once you have practiced enough and are capable of creating from nothing a yin construct of 20 square meters and giving life to the construct with enough yang to handle a great breath through in terms of force you can practice step two.
Step two: this is the most important step. It requires power! Unlike the violent force of great break-through Jutsu you focus on to quickly converting as much chakra to wind nature and compressing the air in your shadow clones' domain. This will create high steady winds as the air pressure quickly builds, but you are not focused on compressing these winds to cause damage only to build up the internal pressure. Multiple clones can increase the rate at which this wind domain is pressurized and stabilize the outer edge of the domain.
To train this you just need to focus on wind nature transformation training.
Step three: This step reduces chakra expenditure and increases damage. You compress in both size and chakra density the outer barrier. The barrier is the weakest part of this Jutsu in the beginning but this can certainly be strengthened. A dome that requires compressive forces but as the Rasengan is capable of withstanding high compressive force it should withstand the internal air pressure of this Jutsu at a small size.
This turns this whole jutsu into a sudo Rasengan. The wind chakra-releasing clones focus on balancing the increasing internal air pressure while subduing the trapped opponent to prevent them from attempting an escape before the pressure becomes fatal. It is better to have more clones to control and protect the barrier than to increase pressure unless you are inside a physically enclosed environment.
To train this you need to focus on the compression training of the Rasengan. For a mastery milestone, use earth jutsu to create a dome around your barrier. If the dome is unscarred from pinhole leaks in your dome as you shrink your barrier it has yet to be mastered. It is advised you use this milestone training FAR away from people if your barrier breaks then your clone will burst. no one will be able to control the barrier and all the air will release creating a shockwave between the barrier and the rock dome creating a shrapnel grenade likely killing all life in a 15-foot radius and injuring up to 750 feet.