The Impure World Reincarnation Technique allows the deceased to release the contract with the summoner. Uchiha Madara knew how to do it, and the Second Hokage, as the developer of this technique, could not have been unaware of it. In fact, when he realized that he was summoned by the "Impure World Reincarnation", Tobirama Senju had thought about using this method to break the caster's control over him. Unfortunately, because of the previous experience of Seiya escaping his control, Orochimaru used Hashirama's cells to strengthen his control over the Impure World Reincarnation when he summoned the First and Second Hokage. This also meant that even Tobirama Senju was unable to forcibly break the technique when being controlled by Orochimaru. Of course, if Orochimaru temporarily releases his control over the Second Hokage, Tobirama Senju would be able to break free from the control of the Impure World Reincarnation over himself, but the question is, does Orochimaru have the courage to do so? "I see. I was wondering why the Impure World Reincarnation technique I developed seemed to have been improved. So the reason for this happened to you? You should also be a ninja who was resurrected by the Impure World Reincarnation, and judging from your condition, you must have forcibly terminated the contract with the caster. Whether it's the young Mizukage over there or you who were able to break free of the Impure World Reincarnation's control, it seems that the Hidden Mist Village in this era is really not to be underestimated." The Impure World Reincarnation technique was developed by himself, so the Second Hokage would naturally not say that his technique was not good. Although Seiya is dead, looking at his young appearance, it is not difficult to tell that he was not very old when he died. The "Immortal Reincarnation" that I left on the Naruto scroll only had instructions for using and canceling the technique, but there was no method to forcibly cancel the contract and get rid of control. However, the other party was able to do this, which means that he had researched it himself.
Seiya looks so young, yet possesses such strength, he naturally deserves the praise from the Second Hokage. “I didn’t expect that the Impure World Reincarnation Technique actually has a method to forcibly terminate the contract. But even if you figured out the weakness of the Impure World Reincarnation technique, the method you master should be used by the controlled dead, right? In other words, even if you knew some weaknesses of the Impure World Reincarnation Technique, you cannot help the First and Second Hokage escape from my control now. Although you are one more person now, my advantage remains the same. As a ninja who has been resurrected by the Impure World Reincarnation, you should be clear about this, Seiya, right? Compared to the First and Second Hokage, whose strength is slightly weakened but whose chakra can be used infinitely, the aging Third Hokage, the fledgling Mizukage, and finally you, do you think you really have a chance of winning?" Although the situation has changed from three against one as Orochimaru had initially expected to three against three, Orochimaru is still quite confident in the current situation. The physical condition of his beloved teacher, the Third Hokage, had deteriorated faster than he had imagined over the years. After just a few rounds of ninjutsu duels, he was now out of breath. The Fifth Mizukage, Mei Terumi, is actually stronger than the Fourth Kazekage, which was a little beyond Orochimaru's expectations, but that's actually the case. As for the last Seiya..., to be honest, if Seiya had not broken free from his Impure World Reincarnation control, Orochimaru would not even have looked at a Kirigakure jonin like Seiya. Bloodline ninjas might be looked up to by others, but hasn’t Orochimaru seen enough bloodline ninjas over the years? Kaguya Seiya? If it weren't for the bloodline of the Corpse Vein, Orochimaru wouldn't even know that there was such a person in the ninja world. The opponents are an old Hokage, a newly appointed Mizukage, and an unknown Kirigakure Jonin. On their side is the "God of Ninja World" who is famous throughout the ninja world and treats the tailed beasts as his younger brothers, as well as the genius ninja Senju Tobirama who has developed many S-level ninjutsu and can be called an all-round hexagonal ninja. Although Orochimaru's fame and strength are slightly inferior to the First and Second Hokage, he is still a well-known figure in the entire ninja world. With this lineup comparison, Orochimaru wants to ask him why he loses like this! "Wood Release: Tree World Arrives!" At the same time as Orochimaru's body shot out like a snake, Hashirama Senju, with his hands clasped together, once again used the Wood Release Map Cannon he had used before. Hashirama Senju had just used the Tree World Descent once, and at that time, in order to resist the Wood Release covering the area, the Third Hokage used the combined ninjutsu of Earth Release and Water Release called "Earth Flow River", using surface movement to resist the tree roots from spreading underground. Then, Mei Terumi used the high-pressure water jet of water jutsu to cut those thick tree trunks, and combined with the ninjutsu of the two Kages, she was able to block Hashirama Senju's Wood jutsu with great difficulty.
Looking at the ever-expanding sea of trees, the Third Hokage thrust the Monkey King into the ground. He formed seals with both hands and was about to use combined ninjutsu to block the Wood Release when Orochimaru, who had transformed into a snake and was sliding at high speed on the ground, suddenly rushed in front of the Third Hokage and spit out the Kusanagi sword from his mouth! Seeing the Third Hokage being attacked and the sea of trees spreading towards them, Mei Terumi originally wanted to use "Boiling Release" to resist, but after seeing the surrounding environment, she instantly stopped the idea of using bloodline. The reason was very simple. Now they were trapped in the Four Purple Flame Formation and were in a confined space. It would be fine for herself, but once she used the Boiling Mist Technique, the acid mist in this enclosed space would not only hurt the enemy, but would also affect her own people. "It's better not to use Boiling Release. The acid mist has limited damage to the Impure World Reincarnation ninjas, not to mention a guy with a strong vitality like Orochimaru. The only one who will suffer in the end is probably the old man, the Third Hokage. We are not good at sealing techniques, so in the end we have to rely on the old man of the third generation to turn the tide. We cannot let him die at this critical moment." Seiya's figure suddenly appeared in front of Mei Terumi. While speaking, he pressed his hands to the ground in front of him and burst out with extremely strong chakra. "Corpse Vein——Dance of the Early Ferns!" Along with the sudden violent shaking of the ground, one after another hideous bone spurs suddenly broke out from the ground at an astonishing speed like bamboo shoots! In just a few moments, a large bone forest instantly formed on the ground in front of Seiya. The huge tree roots and vines that were originally spreading were now completely pierced by the bone spurs that pierced out from the ground. In the space of the entire Four Purple Flame Formation, the venue was instantly divided into two at this moment. One side was a lush primeval jungle, while the other side was a lifeless, hideous bone forest full of bones! "The first Hokage's Wood Release Ninjutsu was actually blocked head-on!" Looking at the shocking scene in front of them, the Konoha Anbu who was blocked outside the Four Purple Flame Formation exclaimed in shock.