Konoha, reported by the Fourth Hokage at the start.

Chapter 498 That's wonderful, Lord Raikage!

"Hmm...this is stimulating various acupoints and spaces in the body!"

Li Yao's eyes flashed, and he quickly sensed that the acupoint space within the Fourth Raikage's body had been stimulated, causing a portion of the life potential within to overflow.

It's important to understand that acupoints are not like physical organs; they are special energy organs hidden within the body, and needles cannot be directly inserted into them.

However, powerful electric current energy can have an effect.

Now, the acupoint space is clearly stimulated by the electric current energy, and it is vibrating.

Li Yao had sensed it before; the needles on the Fourth Raikage's body were inserted into the acupoints, which seemed to be intentional, with the aim of targeting the acupoints.

"Is the Fourth Raikage planning to... open all of his pressure points?"

"Is this guy out of his mind?"

In Li Yao's perception, as the needles piercing the acupoints continuously increased the current input, the Fourth Raikage was trembling hysterically, shaking like a pile driver, and the coffin-like device was making a clattering sound.

As the stimulation intensifies, the Fourth Raikage's pressure points are on the verge of opening, and his chakra levels are increasing.

However, opening the acupoint space is no joke.

Even Li Yao, who possessed the chakra of the acupoint space, couldn't close the fully opened acupoint space back then, so the Fourth Raikage certainly couldn't either.

Once all the acupoints in the body are opened, all the life potential within the body will erupt, and it will be unstoppable.

Life potential can also be seen as vitality. Once it is completely depleted, it means that life has come to an end, and both the soul and the body will die.

Once the acupoints in the whole body are opened, it's like a human-shaped water balloon that was originally full of vitality being punctured. The vitality inside instantly dissipates and there is no way to recover. One can only wait to die.

When Li Yao was driven to the brink of despair by the Third Raikage, he opened all the acupoints in his body and released all his life potential, which allowed him to escape from the Third Raikage.

The reason Li Yao dared to open all the acupoints in his body was that even if the acupoints were destroyed, he could still use the chakra in the acupoints to seal his life potential from leaking out.

It's like a human-shaped water balloon bursting open. Everyone else can only watch the water spill out and land without being able to do anything, but Li Yao is able to take out a balloon in time and refill the water before it hits the ground.

So even though he lost all his acupoint spaces back then, he is still alive and well.

However, the Fourth Raikage did not have the chakra of the chakra points. Once all the chakra points were opened, he would have no way to lock back the bursting life potential and would surely die.

"They're risking their lives to improve their strength!"

Li Yao thought to himself.

The Fourth Raikage was clearly provoked by his Earth Release clone, Rock, and even though he knew that opening his chakra points would lead to death, he had no choice but to risk stimulating his chakra points to train in Lightning Release Chakra Mode.

"But can stimulating acupoints really accelerate the body's cells' adaptation to lightning?"

Li Yao was curious and continued to observe.

Ten minutes later.

The words "It's not working" floated across the computer screen. The old man in the white coat, who had been intently watching the screen, immediately pulled the switch, turned off the current input, and pressed the control button at the same time.

Sizzle...!

The robotic arm on the coffin chamber rotated, moving the coffin chamber into the black liquid metal pool on the left.

*Thud... Clang!*

The glass panel of the coffin compartment opened, and the Fourth Raikage slid down from it, landing directly in the pool of black liquid metal, where he was submerged.

"What a unique nutrient solution!"

Li Yao looked surprised.

As the Fourth Raikage was completely enveloped in the black liquid, the damaged cells within his body were rapidly repairing themselves.

This is clearly the effect of the nutrient solution in actively repairing cells.

As someone who had spent a long time soaking in nutrient solution, Li Yao was well aware of its effects.

However, the nutrient solution used in Konoha contains chakra that can repair human cells.

The black liquid nutrient solution enveloping the Fourth Raikage contained no chakra; it was more like an inducer, prompting the Fourth Raikage's cells to accelerate division, self-healing, and self-repair.

Ultimately, what is consumed is the Fourth Raikage's life potential, that is, his lifespan.

The Fourth Raikage is truly training with his life on the line!

"Why not use a nutrient solution containing chakra for repair?"

"Could it be that chakra affects the effectiveness of this training?"

Li Yao was curious and carefully sensed the Fourth Raikage's physical condition.

In terms of vitality, it is indeed stronger, but this strength is obviously disproportionate to the cost and the gain compared to the life-saving aspect.

Another ten minutes passed.

The black liquid turned into clear water, and the Fourth Raikage opened his eyes in the pool, stood up, and leaped out, landing on the floor outside.

"how?"

"Is it effective?"

The old man in the white coat quickly came over to ask. This training method was only determined yesterday, and the relevant equipment was only set up today. However, it is still hard to say how effective it will be or whether it can speed up the training of the complete Lightning Release Chakra Mode.

"not bad!"

The Fourth Raikage clenched his fists, twisted his arms, and felt much lighter, with an indescribable sense of exhilaration throughout his body.

Whether it will succeed or not depends on the effect after activating Lightning Release Chakra Mode.

Without delay, the Fourth Raikage told the old man in the white coat to step back, and then immediately activated Lightning Release Chakra Mode.

Sizzle... Lightning crackled across his body.

"It's done!!!"

The Fourth Raikage couldn't contain his delight as a smile spread across his face.

After activating Lightning Release Chakra Mode, the Fourth Raikage felt in an instant that his current Lightning Release Chakra Mode was different from before; more precisely, his body's adaptability to lightning had changed.

If we define the gap between him and his father, the Third Raikage, in terms of his lightning chakra mode—a hybrid of flesh and blood and energy—as one section of ten segments.

His current physical body is only eight small steps away from being half flesh and blood and half energy!

One session of electrical stimulation during practice resulted in progress of two small sections.

It's important to know that the Lightning Release Chakra Mode becomes increasingly difficult to improve as you progress further in your training; aside from innate talent, you can only rely on time to hone your skills.

It was only through decades of arduous training that my father was able to reach the level of half-flesh and half-energy in his Lightning Release Chakra Mode.

In one session of his practice, he actually progressed two small steps forward, which was equivalent to the effect of a year of dedicated practice.

Moreover, this is an improvement he made after training the Lightning Release Chakra Mode to his current level.

Faced with this neighbor's speed, which can only be described as high-speed.

The Fourth Raikage naturally couldn't suppress his inner joy.

"That's great, Raikage-sama."

The man in the white coat, standing to the side, listened to the Fourth Raikage's words and saw the delighted expression on his face, and he also became happy.

The Fourth Tsuchikage's power not only weighed heavily on the Fourth Raikage, but also on the other members of Kumogakure. They all longed for a strong person to emerge in the village who could defeat the Fourth Tsuchikage.

Now, the old man in the white coat saw hope in his own Raikage, how could he not be happy?

(End of this chapter)