Extracting Chakra from Cell's, Chakra Control Training

Perhaps due to the Nine-Tails' chakra, his physique underwent another round of strengthening in just these short bursts of time.

That's why his physical strength increased so much.

Otherwise, in just a week, there is no way Naruto would have had such a transformation, even if he worked day and night without resting.

Strengthening the physique through exercise is a slow and gradual process that could never be accomplished so quickly without another factor coming into play, and that factor was the Nine-Tails' chakra.

"Hmm," he touched his chin while countless thoughts flashed through his mind as he sat on the futon in the greasy old room.

"I don't have cheats that those unique people get, but this Kurama's chakra itself is kind of like a cheat."

Naruto nodded his head.

"If there was a cheat, he would be happy. If there wasn't, then he could find another solution to become stronger. Why cry about it like a miserable kindergarten kid?"

Suddenly, his vision changed to a giant cage again.

"Hey, Naruto," Kurama said with a strange expression on his fox face.

Naruto frowned. "Why did you call me here?"

"Do you want my chakra again?" Kurama asked amusingly, extending his claws and pointing at him.

"Why are you suddenly helping me?" Naruto gave Kurama a deep look.

"Because I can sense the pure evil hidden within you that will eventually burn this village to ashes, and I am looking forward to that day," Kurama started to laugh.

Naruto shrugged when he heard this. "I don't need your chakra today. I am going to try to increase my own chakra."

"Oh?" Kurama suddenly paused when he heard this. "Very well."

When the voice faded, Naruto's vision returned to his room.

"I see," he muttered, a hint of indifference in his eyes.

Kurama was excited by the thought of Naruto exacting revenge on the villagers of Konoha.

The fox had been sealed repeatedly by the village, whether by Mito Uzumaki or Naruto's mother, Kushina Uzumaki, used as a tool for war.

But Kurama neglected one thing: Naruto was purely evil.

The soul from another world had merged with Naruto's, forming a new being.

If he couldn't spare the village then how could he spare the fox that had killed his mother and father?

This was the final consciousness and resentment of the real Naruto's soul before it fully merged with him. Now, Naruto was him, and he was Naruto.

For the time being, he had to digest the resentment because he was powerless at the moment.

Thinking of this, Naruto promptly started to train his chakra, sitting cross-legged on the futon.

Sensing chakra was actually very easy; all he needed was to feel it, practice, and develop an instinct for it.

"Hmm, is this chakra?" After a short time, Naruto felt the huge reserves of a blue flame-like substance in his lower abdomen, all gathered there, and numerous pathways connecting all parts of his body to the lower abdomen.

This blue flame-like substance was obviously chakra, and Naruto could easily sense it.

From the numerous chakra pathways, the chakra from his lower abdomen was constantly travelling to all parts of his body.

"My chakra reserve shouldn't be bad even if I don't get chakra from Kurama," Naruto muttered as he started to control his chakra.

He possessed the bloodline of the Uzumaki clan and its physique, which are known for their vast reserves.

Even if Naruto didn't use the chakra of Nine-Tails, his chakra was still as high as five times that of Kakashi's.

However, at the same time, his chakra control was horrible in the original work.

But for Naruto now…

The control of chakra was an easy and hard thing at the same time. It could even be driven by instinct, but for one to have precise control of the chakra, they still needed a vast amount of training.

Naruto didn't delay his training any longer.

He willed the chakra in his body, and instantly, every cell and protein in his body, which was connected to the chakra pathways by a capillary, started to draw out the cell's physical energy.

At first, he struggled for a bit, but soon Naruto got used to it.

The process lasted for a few minutes before Naruto finally stopped with ragged breathing.

Huff! Huff!

Naruto took deep breaths as he felt his sweat-soaked body.

He felt very weak, and the internal organs inside his body, especially his heart, were strained because of the physical energy drawn from the cells.

"That's it for today. If I do more, then I will have to be in a hospital bed for several days."

Naruto muttered and finally stood up.

In the world of ninjas, all the power was decided by two simple things: one is chakra and the other is ninjutsu.

Just like oil to a car, every ninjutsu needed chakra to be activated. As for taijutsu, you can consider it as the EV cars which just need stamina and endurance to be used.

For Naruto now, he had no access to ninjutsu, so what he needed was to train his body more while increasing his already vast reserve of chakra, simultaneously working on his control of it.

Naruto sensed the vast reserve of chakra in his lower abdomen and immediately started to mould it together.

In the original work, there were various ways to increase the control of chakra. Naruto chose the simplest way at the moment.

With his body at the centre, he started to spin his chakra into a tight spiral from left to right.

This process lasted for two hours before Naruto finally stopped.

Then he started to train his body again before eating pork, and then he trained.

With the addition of his normal training, Naruto also tried to increase his chakra reserve as well as his control over it.

He neither wore good clothes nor had the toys that other kids had.

Held up in his room, entirely focused on his training, all the subsidy money went to buying food for his exhausted body.

Just like that, time seemed to pass in the blink of an eye—three years passed in the blink of an eye.