Years of research, planning, and intense study have all culminated in this singular moment. This particular stage of the Vitality Seal concerning the brain is truly perilous; it is sensitive to a terrifying degree. One minor mistake could mean his immediate death, or something arguably worse—permanent brain damage that would transform him into a helpless imbecile.
Yet, he is ready.
The first phase—nourishing the brain with blood saturated with concentrated medical chakra—took years to complete. The results far exceeded his initial expectations. His brain is now stronger, faster, and exponentially more efficient than it ever was before. Most importantly, his reflexes have improved to a supernatural level. This advancement in speed and precision provided him with something fundamental: incredible chakra control and a degree of accuracy that surpasses anything he had achieved in the past.
He can now isolate a single cell and pump chakra into it without affecting anything around it. He can divide his concentration into hundreds of thousands of separate parts at the exact same moment. This level of control is absolutely essential, because what he is about to do in the second phase requires a precision that transcends human capability.
He closed his eyes and reviewed the plan in his mind for the thousandth time. What he is about to do is incredible, bordering on the impossible. He will send very fine chakra threads—about a hundred times thinner than a human hair—through the blood flowing to the brain. These threads are not ordinary; they are strings of pure, concentrated, and stable chakra. They are difficult to create and even harder to control.
These threads will accompany the blood carrying the medical chakra, entering the brain through the primary arteries. Then—and here lies the difficult part—they will spread throughout every minute and thin vessel within the entire brain. The human brain contains an incredibly complex blood network; millions of tiny capillaries nourish every part of it. Some are so thin that a single blood cell can barely pass through. Dan will send his chakra threads through every single one of these vessels. Every single one.
The control required for such a feat is non-human. It would be impossible for anyone else, but not for him. Not anymore.
But is it just the brain? No, that is not enough. After covering the entire brain, the threads will sneak further, wrapping themselves around the spinal cord within the neural spinal column that connects the brain to the rest of the body. From there, they will extend to the entire nervous system: the nerves spreading into every organ, every limb, and every finger. The complete neural network will be covered by these fine, stable chakra threads.
The expected duration? Years. This is not a single operation, but a long, gradual process. After finishing the deployment of the threads, the final stage begins: the Linkage. Dan will connect these threads with the network of Vitality Seals already present in the bones, muscles, and internal organs. One integrated cycle. Everything interconnected.
When the connection is complete, these thin threads spread throughout his brain and nervous system will begin sending medical chakra directly to every part—to every nerve cell and every brain region—without any intermediary. The expected improvement? Immense. Supernatural.
Processing speeds surpassing computers. Perfect memory. An almost infinite capacity for multitasking. Total control over every nerve in his body. And perhaps—just perhaps—the ability to interact with the spatial fabric, not merely perceive it.
Dan opened his eyes and looked at his hands. It is dangerous. The technique is extremely dangerous. Overall, it is a nearly impossible technique; in fact, it is completely impossible for anyone other than himself. It requires unbelievable accuracy, control beyond human limits, and endless patience. One error, or one thread entering the wrong place, could tear the sensitive fabric of the brain, and everything would end. Death, madness, or a vegetative state.
But Dan is excited. There is no fear. There is no hesitation. He knows he will succeed; he is entirely confident. Why? Because he has prepared for this moment for entire decades. Every bit of training, every technique, and every enhancement has led him to this point. His chakra control is unparalleled. His Kekkei Genkai gives him control at the cellular level. His enhanced brain can process countless operations at the same moment. All the tools are ready. He only needs time and patience.
Time.
He smiled slightly. Time is the thing he lacks least. His life expectancy is now around seven hundred years, perhaps more. Five years? It is nothing. A drop in the ocean.
The Implementation Program for Phase Two - The Brain Vitality Seal:
Year One:
Months 1–3: Deploying threads in the forebrain (frontal lobe).
Months 4–6: Deploying threads in the midbrain.
Months 7–9: Deploying threads in the hindbrain and cerebellum.
Months 10–12: Deploying threads in the brainstem.
Year Two:
Full coverage of all remaining brain regions.
Meticulous stability checks.
Adjustments as needed.
Year Three:
Beginning the infiltration of the spinal cord.
Gradual deployment from top to bottom.
Year Four:
Deploying threads into the peripheral nervous system.
Primary nerves first, then the smaller branches.
Year Five:
Completing the full coverage of the nervous system.
Starting the linkage process with the existing Vitality Seals.
Final testing.
Five years. If he works on it every day, dedicating a fixed time and committing to the plan, he will be able to achieve it. Five years of painstaking, hard work. But the result... he understands the massive magnitude of improvement that will return to him.
His power will take a qualitative leap. He will easily surpass the level of the Sage of the Six Paths. He might reach the level of Kaguya or something very close to it. His control over his body will become absolute. Every cell, every nerve, every movement—under his total command. His mental abilities will multiply manifold: superhuman intelligence, an unforgettable memory, and instantaneous processing.
And perhaps—if luck is on his side—a deeper understanding of the spatial fabric. Perhaps even the ability to interact with it. All of this awaits him; he only needs patience.
He stood up and walked toward the window. He looked at the base around him. His children are training. His wives are busy with the youngest ones. His family is growing and getting stronger. Everything is going according to plan. And now, he will begin the most difficult and most important project of his life.
In the coming period, he will begin. The first session: sending the first threads into the forebrain. A small step, but it is the beginning. He turned, went back to the table, and began reviewing the anatomical details of the brain and his various experiments on small mice and animals. Every region, every blood vessel, and every path he previously got wrong and learned from. He must know everything with perfect accuracy before starting.
There is no room for error. The next five years will be the hardest of his life, but also the most significant. Afterward, he will not be the same person. He will transform into something... else. Something that transcends humanity. A being with a superhuman brain, an enhanced body, and nearly limitless possibilities.
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