Also known as "Strong Worlds" taijutsu; This style of combat was invented by barbaric ice warriors who pillage villages taking down their mightiest warriors using this style. This style was later adopted by wise monks who were able to incorporate it into a even more deadly style of combat which would explain it's somewhat brutal and barbaric type of attacks. This style became known as "Kei Sekken" Strong World Taijutsu. Kei Seken is based off enduring blows to the body while performing one hit knockouts using all strength and energy into one specific blow rather than multiple ones. The user's stance is always having a fluid lower body while having a solid upper body (Opposite of gentle fists techniques that require fast paced with little damage) meaning that most techniques are slower but deal way more damage and this can be reversed to make kicks devestating. The fluid lower body is so that the user can move around freely and quickly while the solid upper body is to keep the muscles tense and clinched for powerful impacts(reverse if for legs). Some masters of this art were actually able to take it a step further and were able to incorporate their spirit and physical energy(chakra) into their body to increase it's reflexis, strength, and impacts to perform very powerful techniques that under normal circumstances, they can't perform (Nowhere near that of the 5th Hokage and Sakura although could be considered a water downed version). Most techniques of Kei Sekken involve enduring, countering, or dodging a technique and then performing a deathly blow to the opponent mostly through using a part of the body that can deal the most blunt damage such as the elbow, fist, knee, fore head, foot, etc. Its not the fastest style but it makes up for it in power
(Learning Requirements and pluses to learning):
-To learn this style, the user must already have a certain degree of strength and endurance(S-Class Ninja) and have trained in basic taijutsu as its not effective with people who are of weaker body or untrained.
-Pluses to learning is the strength and durability development in both mind and body. The user would be able to match someone a rank higher than him in both strength and endurance (Does not apply with being a sage). Also, the user could now ignore his/her surroundings except the opponent if he/she wants to.