A whirlwind of thoughts swirled through Seimei's mind, but he pushed them aside. He gave the panel one last glance before closing it, then got to work casting the Multiple Shadow Clone Jutsu to kick off his training.
Like always, his first move was to create three hundred shadow clones.
Watching them fan out, Seimei sent them off to absorb natural energy, each clone moving with purpose.
Next, he tapped into the chakra stored in the pocket dimension at his forehead, refilling his own reserves to full. Then, he cast Multiple Shadow Clone Jutsu again.
This time, he was creating clones to develop his Bloodline Network.
In the past, he'd only made fifty clones for this, but now? Feeling the surge in his mental strength and his chakra cap nearing 1.4 million points, Seimei decided to push it. With a flicker of intent, he summoned sixty shadow clones.
That's right—he was upping the number of clones working on his Bloodline Network.
Sixty was his starting point.
He'd tweak it later based on how training went.
After sending those sixty clones off to do their thing, Seimei topped off his chakra again. With a thought, he activated Flying Thunder God Jutsu and teleported into the volcano beneath Moon Island.
His vision shifted in a flash.
In an instant, Seimei stood in the third chamber below.
It's worth noting that, even with his Constitution stat jumping up three points, the harsh environment of this chamber still gave his training a solid boost.
Seimei figured it could probably support him through two or three more physical transformations—likely until his Constitution hit 40 and triggered a major change. After that, the chamber's effects might start to taper off noticeably.
When that happened, he'd need a new training spot.
But no need to stress about it now.
For one, there were even harsher environments underground waiting to be explored—he wouldn't run out of options. For another, boosting his Constitution by two or three points would take at least a year and a half. No point getting worked up over it yet.
Shaking off those thoughts, Seimei focused. He drew on the natural energy stored in the pocket dimension in his abdomen and slipped into Sage Mode in an instant.
Then, he started channeling sage chakra to train Body of the Extreme.
Of course, he didn't forget to keep his Byakugan from evolving alongside it during the process.
Time ticked by, second by second.
Before he knew it, an hour had passed.
Seimei paused his Body of the Extreme training and, with a thought, used Flying Thunder God Jutsu to teleport back to Moon Island.
He took a deep breath of the fresh air, letting his body recover naturally.
Thanks to his boosted Constitution, his injuries healed even faster now.
It didn't take long before he was fully recovered.
With a flicker of intent, he dispelled the Multiple Shadow Clone Jutsu.
In an instant, every clone—on the island and beyond—dissolved into nothing.
A flood of memories, chakra, and natural energy poured back into him.
Following his usual routine, Seimei resisted the urge to dive into the memories right away. First, he sorted and stored the incoming chakra and natural energy.
Only then did he start sifting through the memories.
This time, he zeroed in on the memories from the clones working on his Bloodline Network. He absorbed their training experience, digested it, and compared it to the chakra they'd burned through to gauge efficiency.
About ten minutes later, he opened his eyes.
The results were clear: with his boosted mental strength, increasing the number of clones for Bloodline Network development did yield more experience.
Sixty clones turned out to be a solid balance of cost and reward.
So, after some thought, Seimei decided to push it further to see if he could squeeze out even better efficiency.
No time to waste. He popped a few enhanced soldier pills to restore the energy he'd spent, then cast Multiple Shadow Clone Jutsu again.
First round: three hundred clones to absorb natural energy, as usual.
Second round: seventy clones to work on the Bloodline Network.
As for himself? Back into the volcano to keep strengthening his body.
Beyond tweaking the number of clones for the Bloodline Network, he also needed to test his body's current limits.
No time to slack—not even a minute.
Time slipped by.
Another hour passed in a flash.
Seimei teleported back to the island, absorbing and processing the past hour's worth of training experience and memories from his clones.
He noticed something: seventy clones might've been too many.
Sure, they brought in more experience, but the chakra cost was higher than he'd expected.
That tipped the efficiency scale in the wrong direction.
His chakra recovery could handle the loss for now, but Seimei was a planner. Who knew when he'd need a massive chakra reserve down the line? He wasn't about to waste a single drop.
After mulling it over, he decided to dial back the number of Bloodline Network clones and run more tests.
Round after round, he kept at it.
By evening, after eleven cycles, Seimei finally nailed down the sweet spot—the perfect balance of effort and reward.
The magic number? Sixty-five clones for developing the Bloodline Network.
At that number, the experience gained versus chakra spent hit peak efficiency.
Seimei decided to stick with sixty-five clones until his Mental stat leveled up again.
He ran some quick calculations. With this setup, he'd be spending about 9.75 million chakra points daily on Bloodline Network development—up from 7.5 million, an increase of 2.25 million.
It was a noticeable jump, but not massive.
He could cover it by pulling 2.25 million from his daily chakra surplus.
But here's the kicker: that didn't mean his surplus would shrink.
Over the past ten-plus hours, he'd also tested his body's new limits.
Compared to before his transformation, his body could now handle about thirty percent more chakra infusion.
Before, full-day body training required 51 million chakra points.
Thirty percent more? That's 15 million extra, bringing the total to 66 million.
But lately, for the past two months, he'd been setting aside six hours a day to use Mirror Heart Jutsu to push his Sharingan's evolution.
So, his actual body-training chakra cost was around 45 million points.
That was 6 million less than the original 51 million. Even factoring in the 3 million extra for Mirror Heart Jutsu, he was still saving 3 million points.
Do the math: 3 million saved minus 2.25 million for the extra clones? That left a surplus of 750,000 chakra points.
That's why, even with the increased cost for Bloodline Network clones, his daily chakra surplus wasn't necessarily shrinking.
Of course, once his Sharingan hit its next evolution threshold and he shifted those six hours back to body training, his surplus would take a hit.
And not a small one, either.
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