The next day.
Seimei slept until he naturally woke up, feeling refreshed and invigorated.
Not only had the fatigue from yesterday's training melted away, but even the exhaustion accumulated from days of relentless practice had mostly dissipated.
Shielding his eyes from the sunlight streaming through the window's cracks, Seimei got up and stretched with a satisfying groan.
"Mmm, that feels good!" he murmured.
With a little hop, he jumped out of bed.
He pushed open the door, stepped out of the wooden cabin, and strolled to the nearby stream, taking his time to wash up.
Afterward, he downed several enhanced soldier pills to fill his stomach.
Once all preparations were complete, Seimei began his training.
Or, more accurately, his breakthrough.
At the center of Moon Island's clearing, Seimei sat cross-legged.
As he had done for past breakthroughs, he first activated his Eternal Mangekyo Sharingan.
Then, he tapped into the power of Humanity's Control to enhance himself.
Next, he performed an improved version of the Mystical Palm Technique, condensing the purest Yang Release chakra.
This chakra flowed into his body, coursing through his dense chakra pathway network, reaching every part of him and seeping into his cells.
Fueled by this Yang Release chakra and guided by Humanity's Control, his cells began a slow but steady evolution.
Each step of their transformation was subtle, but when accumulated to a certain point, it would trigger a qualitative leap.
That would be the moment he broke through his body's limits and completed his transformation.
With hope in his heart, Seimei closed his eyes.
Time ticked by, second by second.
The sun rose in the east and drifted toward the west, nearly sinking into the sea.
Suddenly, Seimei's body trembled, and a wave of profound relief washed over him.
He knew instantly—he had succeeded.
The invisible shackles restricting his body's growth had been shattered, and his body could now strengthen normally again.
But before that, it would undergo a transformation.
With that thought, Seimei focused, carefully sensing the changes in his body.
As expected, just like every previous transformation, a warm current surged within him, rapidly spreading through his body and nourishing his cells.
"Mmm," Seimei let out a contented hum and closed his eyes again.
Time passed, minute by minute.
About half an hour later, he opened his eyes.
"Panel!" he commanded mentally, pulling up his proficiency panel.
As expected, with his body's transformation complete, his Constitution attribute had risen by one point, from 31 to 32.
Without hesitation, Seimei focused his mind to test the changes this brought.
First, he checked his potential—his theoretical chakra ceiling.
After half an hour of testing, he reached a conclusion: this Constitution boost had increased his theoretical chakra ceiling by 4.5 million points.
That was a million points more than the 3.5 million he gained when his Constitution went from 30 to 31—a bit beyond his expectations.
But it made sense. This transformation had further narrowed the gap between his Constitution and Spirit attributes.
A smaller gap meant more of his potential was unlocked.
Under these circumstances, a slightly larger increase in his theoretical chakra ceiling was only natural.
Still, he cared more about his body's natural chakra recovery rate than the ceiling itself.
With that in mind, Seimei paused his Chakra Refinement Technique, opened his panel, and quietly monitored the Chakra stat while waiting for his body to recover chakra naturally.
Time ticked by.
After about ten minutes, he stopped observing.
His panel showed his chakra had increased by 156,944 points.
Ten minutes for 156,944 points meant 941,664 points per hour. Over 24 hours, that was roughly 22.6 million points.
In other words, with sufficient energy, his body could now naturally recover about 22.6 million chakra points per day.
Before today, that number was 19.9 million.
This Constitution boost had increased his chakra recovery rate by 2.7 million points.
That was a significant jump compared to the 2.2 million-point increase when his Constitution went from 30 to 31.
Clearly, this was another result of narrowing the gap between his Constitution and Spirit attributes, unlocking more of his potential.
Seimei was quite pleased with this.
Normally, he'd now test his body's capacity to handle chakra post-transformation to plan his next training phase.
But he didn't.
Why? Because this round of attribute boosts wasn't over yet!
About a month ago, his Sharingan's evolution had reached (50,000/100,000), teetering on the edge of a breakthrough.
Back then, he held off because he worried that advancing it would push his Spirit attribute too far ahead of his Constitution, risking an imbalance between mind and body.
But now, with his Constitution up by one point, it was only one point behind his Spirit.
In this state, he could safely push his Sharingan's evolution without worrying about losing balance.
So, he decided to wait until his Spirit attribute also increased before testing the remaining aspects.
No time to waste. Seimei swallowed more enhanced soldier pills to replenish his energy, then began using Heart Reflection Technique to stimulate his Sharingan's evolution.
Time passed steadily.
Seimei could clearly feel his Sharingan evolving slowly as chakra flowed into his eyes.
At the same time, his panel showed his Sharingan's evolution progress climbing.
Finally, at a certain moment, it broke through the (50,000/100,000) threshold.
A tingling, itchy sensation spread from his eyes.
His Eternal Mangekyo Sharingan activated involuntarily.
The black sun-like pattern within grew a shade deeper, as it had with every previous advancement.
In the next moment, a powerful mental pressure radiated from his eyes, silencing the insects and birds on the island.
Noticing this, Seimei frowned slightly and focused, reining in the mental energy that had spiked and was slipping out of control.
Time ticked by.
About ten minutes later, the mental pressure around him vanished.
The island's animals gradually came back to life, their sounds filling the air once more.