Eight Gate

The Eight Gates (八門, Hachimon?, English TV "The Eight Inner Gates") are eight specific points on a person's chakra circulatory system. They limit the overall flow of chakra within a person's body. The basis for the idea of the chakra gates comes from the body's limits on the functions within it. This makes the body much weaker, but it keeps the body from expiring too soon. By opening these gates, the user can surpass their own physical limits at the cost of extreme damage to their own bodies. Opening the final gate will grant the user enough strength to surpass a Kage; however, the result of opening the final gate is that all the energy from the opener's cells is used up, resulting in the user's death. The state where all eight gates are opened is called Hachimon Tonkō no Jin (八門遁甲の陣, Hachimon Tonkō no Jin?).[13] Rock Lee is able to open the first five gates. Might Guy, who taught Lee the skill, is able to open at least six. Kakashi Hatake can open at least one gate, as shown while he is rock climbing where a shot of his brain shows the relevant point activating.