Chakra! Teaching

In fact, it was only after coming to this world

that Uchiha Tenshu learned the truth.

Although fans recognized the Senju Clan as having vast reserves of Chakra, the Uchiha Clan were the ones who truly had an absurd amount of it.

After all, Chakra was an energy that was extracted from physical energy through spiritual power.

Both factors affected how much Chakra one had!

What the Senju Clan truly excelled at was the Sage Body, which enhanced strength and stamina. Although it also increased their Chakra reserves—giving them dozens of times as much as ordinary people with civilian bloodlines—they still had less than the Uchiha Clan. However, their powerful physiques let them repeatedly extract Chakra from their bodies.

Their spiritual energy was limited, though. If they forcefully extracted Chakra too many times, they would deplete their own spiritual energy.

Trying to extract more Chakra after reaching their limit was like drinking poison to quench their thirst. Each time, they would pay with a portion of their lifespan.

The Uchiha Clan, on the other hand, had powerful spiritual energy that let them extract more energy from fewer cells.

Once their Sharingan awakened, their spiritual power underwent a qualitative transformation.

This increased the amount of Chakra they could extract severalfold.

Of course, even though the Uchiha Clan had powerful spiritual energy, their physical bodies were not much stronger than ordinary people's. They could only extract Chakra once, too. If they extracted it repeatedly, exceeding their body's limits, they would damage their own bodies.

Thus, in terms of total reserves, the Uchiha Clan surpassed the Senju Clan. But when it came to recovery and endurance, the Uchiha Clan was actually inferior.

Overall,

the two clans each had their own strengths.

The Senju Clan recovered Chakra quickly and had great strength. Once their Chakra ran out, they could simply "sell blood," expending spiritual energy to recover.

The Uchiha had greater Chakra reserves and could use it quickly. Once their Chakra ran out, they could only push their bodies to the limit and fight desperately.

Both clans had reached the pinnacle in their respective fields.

Under Uchiha Tenshu's instruction, Kamado Taro was the first to roughly go through the entire process. Then the others took turns repeating the movements.

Uchiha Tenshu was quite pleased with them.

Even if the technique wasn't particularly difficult, the fact that they understood it so quickly meant they were worth cultivating.

They were only his trusted underlings for now, but sooner or later, they would surely become important confidants.

"Trust and loyalty have to be cultivated from a young age!"

A special gleam appeared in Uchiha Tenshu's calm eyes.

"Good. After you first learn to coat yourselves in Chakra, you won't get much of a boost without long-term training, and you'll waste Chakra, too. From now on, your training will gradually improve the strength of the coating and your Chakra control."

Uchiha Tenshu explained as he looked at the group.

In the world of Naruto, nearly all ninjas were basically glass cannons. The way their strength was portrayed made little sense.

When they were weak, a single Kunai could kill them. They would bleed and get injured at the slightest thing, frail and helpless.

But when they were strong, a single punch could shatter a hill, and they seemed to have bodies impervious to harm.

Reality couldn't be that fantastical.

It all came down to how Chakra strengthened the body. When caught off guard, ninjas didn't keep Chakra active to protect themselves.

As a result, their defenses and strength were extremely limited.

If they let their guard down, even a Kage Level fighter could be killed with a single slash.

Even if they were ambushed by a Genin.

Dead was dead!

But once they actively used Chakra to defend themselves and attack, a ninja's durability and destructive power would increase severalfold. Becoming a so-called superhuman was no longer just a dream.

Generally speaking, the stages from Genin to Chunin, Jonin, and Kage Level represented successive levels of Chakra training and self-improvement. The degree of improvement varied at each stage.

Using himself as an example, Uchiha Tenshu had found that when he had first become a ninja, coating his body with a unit of Chakra had doubled his defense and attack power. At the Genin level, he had reached about twice his original strength. Now, while concealing his true strength and posing as a Chunin, he could achieve at least a fourfold increase.

Judging by this progression,

the levels were real.

At the Jonin level,

the same unit of Chakra, used by someone with Jonin strength, should have about eight times the power it would in the hands of a Genin.

No wonder the gap between Jonin and Genin was so enormous!

Of course, that gap wasn't impossible to overcome. One way was to use a greater amount of Chakra to unleash more power. This would waste a lot of Chakra, but as long as you had enough of it,

you could break through the barriers between ninja ranks.

Jinchuriki boosted by a Tailed Beast were one example.

Who cared what rank you were?

I had more Chakra.

I could spend it without restraint.

Every attack I made was powered by a massive amount of Chakra. If you didn't use just as much to counter it, you were as good as dead. And if you did use just as much Chakra to counter it,

then once your Chakra ran out, you were still doomed.

That was why the combination of Tailed Beasts and Jinchuriki could become something like a nuclear weapon in the future.

Likewise, clans with Kekkei Genkai had also developed powerful Chakra through generations of cultivation and inheritance.

Compared to ninjas with ordinary bloodlines, they generally had several times as much, giving them a chance to break the balance between ranks.

The prerequisite was having enough Chakra. This was how bloodline ninjas in the Ninja World could challenge stronger opponents.

"Chakra is an all-purpose power and the extraordinary trait that sets us ninjas apart from ordinary people. It's produced by blending spiritual energy and physical stamina. When we haven't extracted Chakra, our bodies may be stronger than those of ordinary people, but we're still only flesh and blood. We can be wounded by blades. But once we extract Chakra and apply it to the surface of our bodies, we can surpass our normal physical strength several times over, even ten or a hundred times..."

"Of course, to do that, you need excellent Chakra control. Climbing trees is the best training method for you at this stage!"

"..."

"From now on, split into two groups. One group will climb trees while the other protects them, keeping them from falling. Pay close attention to how Chakra strengthens your bodies. When you use Chakra, you'll gain superhuman strength and durability. Make sure you learn to control your Chakra and avoid wasting it..."

As usual, Uchiha Tenshu assigned the group their training for the day. He also answered the questions they'd accumulated during their recent training and gave them pointers on what to focus on. They listened intently, afraid of missing anything.

They were all tense as they tried to memorize the knowledge Uchiha Tenshu had learned at the clan's central academy.

In the past,

instructors from the Uchiha Clan had trained the children of their affiliated clans alongside the Uchiha Clan's own young members. Back then, the children of affiliated clans like theirs, as well as the Uchiha Clan's branch families, had all received a better and more comprehensive education.

But two years ago, after Madara Uchiha brought the Nine-Tails to Konoha to challenge Hashirama Senju once again and was defeated and killed by him, a deep rift had opened between the Uchiha Clan and the Senju Clan. More secretive ninja began watching them from the shadows, clearly looking ready to make a move.

As for that,

although Uchiha Tenshu knew Tobirama Senju wanted to wipe out the Uchiha Clan, Hashirama Senju would definitely stop him,

he couldn't exactly say that aloud.

The Uchiha elders would ask: How did you know?

The Sharingan.

Genjutsu.

Hypnosis.

After a full interrogation using the Uchiha Style questioning package,

Uchiha Tenshu would probably be left half-dead, if not killed outright. He might even expose the fact that he was a transmigrator.

So, as long as he couldn't be sure it was safe,

Uchiha Tenshu didn't make a move.