The sun rose and set.

In the blink of an eye, more than ten hours had passed.

Seimei had been busy from the latter half of the previous night until this evening, treating over twenty severely injured ninjas. In total, he gained more than 10,000 proficiency points.

"Panel!"

With a thought, Seimei opened his proficiency panel.

On it, he saw that his "Precision Extraction Technique" had reached mastery, jumping from LV6 (4250/10,000) to LV7 (0/0).

At the same time, his "Chakra Scalpel" gained several thousand proficiency points, increasing from LV7 (1800/20,000) to LV7 (9200/20,000), with the progress bar nearly halfway complete.

Such an enormous amount of proficiency, even with hands-on practice bonuses, required a substantial amount of chakra.

Only because of his extraordinary chakra recovery speed was he able to sustain it.

Otherwise, even if the opportunity presented itself, he wouldn't have been able to take full advantage.

But gains always come with sacrifices.

He had spent so much time and chakra on treating the wounded and improving these two skills that his other training had inevitably fallen behind.

Seimei had no solution for this, except to hope he could later extract chakra from Mist Ninjas and assign additional shadow clones to catch up.

As for the timing...

Seimei shifted his gaze from the distant sunset toward the direction of Yujin Harbor.

After yesterday's fierce battle, both the Konoha and Mist Ninja forces were exceptionally quiet today.

However, beneath this calm, a storm seemed to be brewing.

Despite the Mist Ninja commander's decisive reaction yesterday, Seimei's plan to use himself as bait hadn't fully met expectations.

Still, their side had managed to gain the upper hand, eliminating several Mist Jonin and a significant number of elite reinforcements.

That alone was enough to create an advantage.

Even if the Mist Ninja didn't take the initiative to strike, Nara Keiko would surely seize this opportunity.

In fact, not long ago, Nara Keiko had already gathered all the Jonin and warned them of an impending large-scale battle, urging everyone to be prepared.

From every perspective, this battle seemed inevitable.

And it would likely be the final confrontation in this region.

The outcome of this clash would decisively determine their position in the negotiations.

Retracting his gaze, Seimei let out a yawn.

Without lingering in the chilly wind, he returned directly to his tent and lay down to sleep.

As for training—

He hadn't closed his eyes in over thirty hours and desperately needed rest. Training could wait until he woke up.

Regarding the hospital work,

Seimei had done all he could.

For the rest, there wasn't much he could do.

In fact, there weren't many injured left.

Those who had been critically wounded and hadn't stabilized over the last twenty hours were likely beyond saving.

Throughout the day, he had frequently seen bodies being carried out of the hospital.

Shaking his head silently, Seimei closed his eyes. Within seconds, faint snores could be heard.

The Next Day

Morning.

The sky was faintly bright.

Inside the tent.

Seimei's eyelids twitched.

The next moment, he opened his eyes.

His gaze was unfocused, his expression blank, as if still half-asleep.

In truth, that was exactly the case.

From yesterday evening to now, Seimei had slept a solid eleven to twelve hours. He couldn't even remember the last time he had rested this long.

No wonder he felt dazed upon waking.

After a few seconds, however, he regained clarity, and his thoughts began to flow.

Propping himself up with both hands, he sat up, casually dressed, and stretched lazily.

At this moment, he felt an unprecedented comfort, as if even his mind was working faster.

Feeling his refreshed state, Seimei murmured to himself:

"Looks like I need to extend my rest periods a bit in the future."

Even training requires balance.

Recently, he had been overly eager for results.

By drastically cutting his sleep time each day, he had unknowingly accumulated a massive amount of fatigue.

This was why he had slept for over ten hours last night.

Continuing like this would be detrimental to his training.

Fortunately, his realization hadn't come too late.

Now that his "Multi Shadow Clone Technique" was fully mastered, even with longer rest periods, he wouldn't have to worry about falling behind on his growing list of training tasks.

Thoughts flashing through his mind, Seimei quickly completed his morning routine. After eating and filling his stomach, he activated "Wind Style: Wings of Wind" and flew beyond the camp.

Yesterday evening, after finishing his work, Nara Keiko had informed him he could rest for two days.

Thus, Seimei didn't have to concern himself with anything beyond focused training.

Still, to be cautious, he didn't stray too far from the camp.

Finding a quiet spot in a nearby forest, Seimei immediately used "Shadow Clone Technique" to create over a dozen clones and began his training.

In the past, Seimei hadn't allocated chakra to his "Precision Extraction Technique," so even after mastering it, it didn't provide additional usable chakra.

Thus, it couldn't accelerate the improvement of his other skills.

On the other hand, the "Fire Style: Great Dragon Fire Technique," which he had maxed out a few days prior, gave him an extra 19,000 chakra points daily for free allocation.

Following his plan, Seimei directed all this chakra toward practicing "Wind Style: Rasenshuriken."

With this adjustment, his daily chakra investment in the technique increased from 60,000 to 79,000 points.

This also raised his proficiency gain from 400 points per day to 525 points per day.

At this pace, Seimei calculated that in at most seventy days, the technique would level up from LV8 to LV9.

And that would be just the beginning.

Once his "Wind Style: Vacuum Sphere," "Wind Style: Vacuum Blade," "Wind Style: Wind Devour," and "Water Style: Exploding Water Colliding Wave" reached mastery, he would save even more chakra.

This surplus chakra would also be dedicated to "Wind Style: Rasenshuriken" training.

At that point, his proficiency growth rate would accelerate further.

The only question was whether he could launch the technique at LV9.

Based on previous experience, LV5, LV7, and LV9 were pivotal stages where skills underwent significant qualitative changes.

As an S-rank forbidden technique, LV9 wouldn't mark the absolute peak of "Rasenshuriken," but it would likely signify a near-perfect level of mastery.

After all, theoretical perfection is rarely achievable for ordinary people.

Even Naruto's so-called "perfect mastery" in the later stages was probably not truly flawless.

Once Seimei's proficiency reached that level, he should be able to use the technique as a ranged attack.

Without the drawback of "hurting oneself while hurting the enemy," he could wield it with much greater ease.

As these thoughts crossed his mind, Seimei quickly pushed them aside and focused on assigning tasks to his shadow clones.

With everything arranged, he immersed himself in training.