This Naruto is too easily persuaded.

The moment the treasure chest opened, Naruto felt a bang in his brain, as if something cold had entered his brain.

A cool and delicate energy surged in from nowhere, quickly merging with the massive Yang attribute chakra within his body.

The world changed in his eyes.

What was once a vague perception has now become much clearer, and is even showing a tendency to extend.

Naruto was amazed by the changes in himself.

But then his attention was drawn to "Effect Two".

With his eyes closed, he could clearly sense a faint line in the void connecting the other end of Konoha Village.

On the other side, a soul filled with resentment and anger is frantically refining chakra.

With each effort of that soul, a faint yet pure stream of power flowed along this thread into Naruto's body.

Although each strand is very small, its advantage lies in its continuous supply.

Naruto opened his eyes, his expression turning somewhat strange.

"So... if Sasuke gets stronger, I can get stronger even while lying down?"

"And the more I teach him and motivate him to seek revenge, the more I benefit?"

Naruto stroked his chin, picked up his black tea, and took another sip.

He wasn't thinking about the distant future; he simply thought it was fantastic.

Naruto felt guilty for a moment.

After all, Sasuke could never catch up with him.

The harder Sasuke tries, the greater the gap between them will become.

In the words of one forum user, this should be called "exploitation"?

"Since that's the case..."

Naruto looked at the black scroll on the table—[Shadow Clone Technique].

Having "Inazuma's Glasses" increases learning efficiency.

With "photographic memory," one can memorize techniques.

Black tea can help relieve mental fatigue.

Naruto's learning efficiency improved several levels in the blink of an eye.

He immediately opened the scroll, quickly skimmed through its uncomplicated contents, and then instantly formed a Ren seal with both hands.

"Shadow Clone Technique!"

Bang!

As the white smoke dissipated, a physical clone that looked exactly like Naruto appeared beside him.

He succeeded on his first attempt at using the Shadow Clone Technique, thanks in no small part to his recent practice in chakra control.

The clone pushed up its glasses and looked at the original body, while the original body looked back at the clone.

"Interesting ninjutsu."

Naruto couldn't resist touching the clone in front of him to feel the texture of its physical form.

Snapped.

Before her hand could even touch the clone, it was slapped away with a look of disgust.

"Don't do that, it feels disgusting."

The clone said coldly.

Even their personalities are exactly the same? That's amazing.

Naruto thought to himself, then dispelled the clone.

The moment the clone dissipated, some memories also entered my mind.

For example, the tactile sensation when the original body tried to touch itself but its hand was slapped away.

Wait a minute… Naruto’s eyes widened suddenly.

Do the memories of a shadow clone return to the original body?

Does that mean... a bold idea is taking shape in his mind?

Naruto created three more shadow clones.

"Go practice your breathing techniques."

"Go and look through some theoretical books."

"Go practice treading water."

After assigning tasks to his three shadow clones, Naruto heated up a cup of milk and began his unwavering daily routine of maintaining his health.

This has almost become a habit for Naruto.

……

The next morning.

Thump, thump, thump.

With three soft sounds, the three shadow clones turned into white smoke and disappeared simultaneously.

next second.

An immense flood of memories surged into Naruto's mind like a burst dam.

The rhythm of breathing instinctively, the chakra experience of treading water, and a large amount of theoretical knowledge all flooded into the brain in an instant.

"Waaah..."

Naruto instantly felt a strong sense of dizziness.

My temples throbbed, my vision went black, and I almost fainted.

He paused for a while, then picked up the now-cold black tea on the table and drank it all in one gulp.

Thanks to the effects of the black tea, he felt much better.

After a night of testing, Naruto drew several key conclusions:

First, shadow clones cannot benefit from the enhancements provided by Aizen's glasses, and their learning speed is far slower than that of the original body.

Secondly, clones can benefit from the "Photographic Memory" bonus.

In other words, if Naruto wanted, he could instantly create hundreds or even thousands of shadow clones with the ability of photographic memory to help him learn.

But this raises another problem: Naruto's mental strength does not allow such a massive flow of information to flood his brain at the same time.

It's also thanks to the fact that only one clone was allowed to learn the theory yesterday.

If there are any more, the impact of the memory re-entry could directly cause him to fall into a coma, or even damage his brain.

Naruto might just be killed by his own ninjutsu.

"Hiss... Is learning theoretical knowledge with a clone the limit?"

Naruto rubbed his throbbing temples, his face pale.

Then, Naruto glanced at his proficiency with water treading and breathing techniques.

[Breathing Technique Proficiency (375/1000) -> (380/1000)]

[Water treading proficiency: 83% → 84%]

Having seen this, Naruto understood.

If some training is done that focuses on physical instincts and muscle memory, Naruto's body can withstand at least a hundred shadow clones training on his own.

However, when it comes to theoretical knowledge, only one shadow clone can be allowed to learn it at most.

Even if there's only one shadow clone learning the theory, he still needs to hold back.

It is best to learn the theoretical knowledge yourself.

After all, shadow clones don't benefit from the glasses' enhancements, and they also put a huge burden on the brain.

If I were to do this process myself, spreading the knowledge gained in a moment over a day, the pressure would be much less, and the efficiency would be much higher.

Only now did Naruto realize just how powerful Aizen's glasses were.

After all, it's incredibly difficult for someone who's at the bottom of the class to start from almost nothing and become the best in the class in just one month.

No matter how you look at it, the effect of "100% improvement in learning ability" is just too incredible.

"The current weakness lies mainly in mental fortitude."

Naruto took another sip of black tea, and as the warmth went down his throat, his dizziness subsided considerably.

He began to analyze the situation calmly.

If his mental strength is strong enough, he can withstand the memory backflow of more clones, and his cultivation speed can double.

Currently, theoretical knowledge can only be learned through one's own practice in the short term.

However, skills like water treading and breathing techniques can be completely replaced by clones.

Even though a single clone is far less efficient than the original body, adding up hundreds of clones can still significantly improve efficiency.

"The key is how to improve mental strength; cultivating slowly on my own is just too inefficient..."

Suddenly, he thought of something.

Sasuke seems to have quite a bit of mental talent...

He closed his eyes and sensed once again the void thread connecting him to Sasuke.

Faint energy fluctuations were still emanating from that end.

"Huh? Sasuke didn't sleep a wink last night?"

Naruto could sense that anxious, tired, yet excited mental state.

"Is this guy an idiot?"

Naruto frowned, a hint of disdain in his voice.

"Refining chakra when you are extremely tired is not only inefficient, but it will also affect your training the next day."

Naruto now feels like one of his disobedient shadow clones is slacking off.

"Sasuke has excellent mental talent, and I'm counting on you to enhance my mental strength."

"If he continues to practice like this without any method, when will he ever provide me with enough mental energy?"

"No, we can't let him continue to waste his talent like this."

Naruto stood up, a glint of shrewdness flashing in his eyes.

"It's necessary to give Sasuke some proper guidance."