One of the ninjas that Nine-Tails hates the most is Uchiha Ban, who manipulates himself like a "pet" and controls himself to destroy Kiba, thus being sentenced to life imprisonment by the Pillar Couple and has been tortured in the body of the Pillar Force.
It wasn't until the fourth Ninja War that Uchiha Ban reappeared, and this moment also made Nine Tails creepy, and the always arrogant Nine Tails even bowed to Naruto, willing to help Naruto fight against Uchiha Ban.
And the first thing Banzai has to do after resurrection is to summon the Nine Tails? This time it is not controlled by the writing wheel eye, that is to say, Ban is actually signing some kind of contract with the Nine Tails, and can channel the spirit at any time? Nine Tails has always hated Uchiha Ban, so where did this contract come from.
In anime Naruto, if you want to sign a contract with a psychic beast, you must use blood as a medium between both parties, and both parties can agree to sign the contract. It's not hard for Ban to control Nine Tails with the Eye of the Writing Wheel, but why can he sign a contract with Nine Tails that is "supposed to trust each other"? Is it because he forced Nine Tails to do this while controlling Nine Tails? This is not the case.
After being guided by the Black Jedi, Ban actually mastered a lot of six levels of power, especially the power of the Yin-Yang Escape Technique, although yin and yang reclusive is a kind of power of the reincarnation eye, but it has learned this ability at a very early age, that is to say, writing the wheel eye can also be used. Before his death, Ban gave the art of Yin-Yang Escape to Belt Soil, which is the power of the Six Immortals and a branch of the Six Immortal Chakra, so it can resonate with the Nine-tailed Chakra.
Ban and Belt Earth can control the Nine Tails because their pupils are too strong, but they can use the Nine Tails as a psychic beast because of the power of Yin and Yang. Because before mastering the reincarnation eye, the spot and the belt soil can only control the highest level of the nine tails, but after mastering the reincarnation eye, the spot and the belt soil can control the ten tails, which is also the highest level of power of the yin and yang, before reaching the reincarnation eye, the reason why the spot invaded with the nine tails is to master the power of the semi-finished product under the guidance of the black jeopardy, that is, the yin and yang of the semi-finished product, although the spot at that time did not open the reincarnation eye, but he could channel the nine tails, The bloodlines of yin and yang and the Uchiha clan are a prerequisite for signing a contract with the tailed beast, while the reincarnation eye is a prerequisite for the psychic ten tails.
After The Death of the Spot, the Belt Soil learned the various techniques of the six levels, mastered the power of yin and yang, and could control the Nine Tails, which is why many ninjas, even the four generations, will define the Belt Earth as the Spot, and also because of the control of the pupil power of the Nine Tails.
Therefore, the original setting has not actually been broken, and it is still necessary to reach a resonance with the psychic beast to sign a contract, and the most critical thing is the yin and yang, this power overrides the cognitive level of the ninja world, and even the psychic nine tails, and only the spot and the belt soil can achieve the power of the psychic tail beast level.