Two days later...
Seimei's Chakra Scalpel was the first to level up, advancing from LV7 (16,580/20,000) to LV8 (1/50,000)!
With this upgrade, his understanding and mastery of the technique took a significant leap forward.
Just as he had anticipated, the technique was now much smoother to use—whether for healing or for taking lives.
However, it had yet to reach the peak of an A-rank jutsu—LV9 (0/0), the realm of perfection—so this was not the ultimate breakthrough.
Satisfied, Seimei casually played around with it for a moment before moving on.
Training continued!
Another day passed in the blink of an eye.
This time, his Transcription Seal leveled up.
Seeing it newly upgraded to LV8 on his status panel, and feeling the insights that had surfaced in his mind, Seimei decisively removed the seal he had placed on himself a few days prior.
Then, without hesitation, he formed a seal, activated his Mangekyō Sharingan, and used the power of Amanomi to place a new seal upon himself.
This time, his Transcription Seal was stronger and lasted longer.
Of course, the increased effectiveness also meant a greater chakra cost.
But for someone like Seimei, whose chakra reserves had long surpassed 400,000 points, this was nothing.
He could afford to ignore it entirely.
Feeling a subtle sense of security settle in his heart, Seimei nodded in satisfaction.
After taking a brief rest, he resumed his training.
The upgrades to his first two skills were merely appetizers. What truly interested him was the upcoming level-up of Universal Sealing Abyss.
This skill's advancement wasn't just about enhancing the seals on both himself and Chōmei, the Seven-Tails—it was also critical to his future training plans.
Right now, he was still spending over four hours daily nurturing his Byakugan, which took too much time.
To prevent it from interfering with his other training, he had been pushing himself to the limit, cutting down on rest.
For now, he could endure it, relying on the immense mental resilience granted by his 26 points in Spirit.
But in the long run? Definitely not.
Training required balance. If he stayed under constant tension, sooner or later, he would break.
Increasing rest and relaxation wasn't an option either. If he did that, his training schedule would be meaningless.
Thus, leveling up Universal Sealing Abyss and upgrading his seals was the real solution.
And finally, the time had come.
---
The Next Day
Afternoon.
After once again releasing his Multi-Shadow Clone Jutsu and absorbing the memories and experiences of all his clones from the past hour—converting them into skill proficiency—his Universal Sealing Abyss finally leveled up.
On top of a massive boulder, Seimei sat with his eyes closed, carefully organizing the flood of new insights.
While his Universal Sealing Abyss had yet to reach its S-rank peak—LV10 (0/0)—the jump from LV8 to LV9 was a fundamental transformation.
It was a significant breakthrough.
Time passed, second by second.
A full fifteen minutes later, Seimei finally opened his eyes.
A sharp gleam flashed in his gaze.
He reached for the metal sphere beside him—the one containing Chōmei.
With a slight injection of chakra, he activated the seal.
Instantly, a dense array of intricate sealing formations emerged across the metal sphere, glowing faintly as if they had come to life, exuding an almost intelligent energy.
Observing these seals, Seimei nodded occasionally… then shook his head.
Before the upgrade, he had only noticed minor flaws in the seal.
Now? They weren't just flaws—they were glaring vulnerabilities.
That's right. Vulnerabilities.
Unlike traditional sealing techniques, which had been refined over multiple generations, Universal Sealing Abyss was Seimei's own creation, a fusion of four different sealing arts.
Although he had mastered each of them to perfection, their core principles and techniques remained distinct.
By integrating them, he had seemingly extracted their strengths and eliminated their weaknesses, forming a seamless connection.
Yet in reality, those differences still existed.
To ordinary shinobi, these subtle inconsistencies wouldn't even register.
But for experts proficient in sealing jutsu, they would be glaring weaknesses.
That was unacceptable.
Seimei refused to allow any vulnerabilities in his techniques. None.
In the past, even if he had noticed this issue, there would have been nothing he could do about it.
But now?
With his newfound LV9 insights into Universal Sealing Abyss, he could completely eliminate these flaws.
Once done, this wouldn't be a mere fusion of four different sealing techniques.
It would become an entirely new sealing jutsu, complete and self-contained.
Even if a sealing master familiar with Sealed Object Formation, Self-Imposed Curse Seal, Guardian Seal, or Four Symbols Seal examined it, they would only recognize faint traces of familiarity.
And if Seimei pushed it further to LV10, completely shattering its original limits, there wouldn't even be a trace of those influences left.
At that point, breaking the seal would be impossible.
However, that step would take more time.
For now, his priority was upgrading the seals on both himself and the metal sphere.
With that decision made, Seimei wasted no time.
He formed a seal and dispelled the current Universal Sealing Abyss on the metal sphere.
Why not start with his own seal first?
Simple.
Right now, his interdimensional space still contained a massive reserve of chakra—leftover from four days ago, when he returned to the village.
If he removed his seal first, that chakra would be wasted.
Instead, he would first enhance the seal on Chōmei, injecting all that chakra into it.
Only afterward would he update his own seal and use Chakra Absorption Jutsu to reclaim his chakra.
During the process, some energy would inevitably be lost, but it wouldn't be a significant amount.
Certainly far better than losing it all.
Given the choice, the decision was obvious.
HSSSSS—
A strange, insect-like screech echoed suddenly.
The moment the seal was undone, Chōmei burst free, appearing before Seimei.
Although its sudden release was unexpected, the Seven-Tails reacted instantly—this time, it was prepared.
Without even bothering to search for Seimei's location, or open its eyes, Chōmei immediately flapped its wings and shot into the sky.
Clearly, it was being cautious of Seimei's Mangekyō Sharingan.
And in doing so, it had indeed given itself a small window of opportunity.
But only a small one.
Before it could even leave the island, a massive figure appeared in its path.
Sensing the presence, Chōmei's eyes finally snapped open.
What it saw next was a colossal hand, reaching directly for it.
And behind that hand...
A towering, godlike giant.
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