Under One Person: Starting with the Dual Cultivation of Body and Soul.

Lu Jin said, "I'm afraid it's not just a little painful. The force of that kick would turn even someone who practices Iron Shirt into a piece of iron!"

Li Chang'an landed on the ground, and he knew the extent of his increased strength. He could now test other aspects.

"Next is explosive power."

He took a deep breath, stomped his right foot hard on the ground, and with a loud "boom," the ground collapsed, and he disappeared from the spot like a cannonball.

Lu Lin felt a gust of wind sweep across her cheek, making her face sting.

In the next instant, Li Chang'an appeared fifty meters away.

After sprinting once, Li Chang'an still wasn't satisfied and began to leap.

He transformed into a white blur, weaving back and forth among the tree trunks, each turn leaving a sharp whistling sound in the air.

"What amazing control!" Lu Lin said in a low voice, "I can sprint at full speed, but I won't be able to stop, let alone control such precise movements. Is this the result of your training in your ego?"

Lu Jin stood aside without saying a word. At full speed, not only could Lu Lin not stop, but even he would have a hard time stopping.

After a series of tests, Li Chang'an stopped. The high-intensity burst of energy had taken a toll on his physical strength, and his breathing was slightly heavy.

"How is it?" Lu Jin asked as she stepped forward.

Li Chang'an calmed his breathing and said, "The improvement is comprehensive, with an increase of about 20% in strength, speed, defense, and the intensity of Qi."

Upon hearing the figure of around 20%, both Lu Jin and Lu Lin gasped in shock.

Cultivation is a gradual process that requires consistent effort over time. Yet, a single high-voltage body tempering session can bring about a 20% to 20% improvement.

Lu Lin suddenly felt that the high-voltage electrical equipment, which looked like a torture device, wasn't so scary after all.

If it leads to progress, what does a little physical pain matter?

But then, Li Chang'an changed the subject:

"It's not without its drawbacks. You see, I'm in good condition now because I'm still maintaining the reverse life force. When I stop the reverse life force, I'll probably have a serious deficit."

"What do you mean?" Lu Jin frowned.

Li Chang'an didn't explain further; with a thought, he released the reverse life state.

His snow-white hair, starting from the tips, began to fade like ink being poured out, gradually turning back to jet black, and his jade-white skin also turned rosy...

The whole process inexplicably gave me the feeling of an immortal shedding their feathered robes and descending to the mortal world.

Immediately afterwards, Li Chang'an stumbled and involuntarily took a step back.

His once lean and upright physique had become visibly withered, his cheeks were slightly sunken, and his eye sockets were deep-set...

He looked exhausted from head to toe, as if he had just been seriously ill.

Chang'an!

Lu Jin was startled and rushed forward to support him.

This scene reminded him of how his master dispelled his powers more than sixty years ago.

My master, who was like an immortal, suddenly collapsed and never recovered.

Chapter 104 The Tempering Continues

"How could this happen? You were fine just now, Chang'an, how are you feeling?" Lu Jin's voice was filled with anxiety and fear.

Lu Lin was also terrified and quickly asked with concern, "Senior brother! Don't scare me! Were you injured somewhere earlier, or did you suffer a qi deviation or go into a state of demonic possession?"

Li Chang'an waved his hand, his voice still relatively steady.

"It's alright, don't worry, I'm fine. Energy is conserved, you know. After a muscle tears, it recovers and becomes stronger; after a bone breaks, the joint becomes more resilient."

"But all of this requires a prerequisite: bones need calcium and muscles need protein. Otherwise, you will only get weaker and your bones will become more brittle."

"My Qi-transformed body advanced so much in a short period of time under constant tempering, which naturally also consumed some energy."

"Since I haven't taken any tonics, I can only deplete my body's vital energy and blood."

"But it's alright. Although this kind of consumption looks scary, it hasn't damaged the foundation of your life. As long as you take some supplements for a period of time, you can recover by making up for the deficiency."

Upon hearing this, Lu Jin breathed a long sigh of relief. The worst thing in cultivation is to ruin one's foundation. Once the foundation is ruined, even the best talent is useless.

"So, this method still carries a lot of risk," Lu Jin said.

Li Chang'an nodded and said, "There are definitely risks, but as long as we control the pace, the risks are not too great. This time, I was too aggressive. I should have proceeded step by step."

Lu Jin nodded repeatedly: "I understand, I understand. You have to eat one bite at a time and walk one step at a time. If you take too big a step, you might accidentally tear your balls."

"The words may be rough, but the principle is sound," Li Chang'an said with a smile.

Lu Lin chimed in, "So, when we're using high-voltage electricity to refine our bodies, we can't tear and rebuild so many times at once like Senior Brother Chang'an did. Tearing it once or twice a day is enough?"

Li Chang'an nodded: "Pretty much, but the exact amount depends on your ability, as everyone's capacity to bear it is different."

Hearing this, Lu Lin breathed a sigh of relief. He had been wondering about this while watching Li Chang'an's experiment.

That intensity was too high; his strength simply didn't allow it.

But if it's just one or two tears a day, he can grit his teeth and get through it.

But then his heart jumped again, because that meant he would have to go up there and get electrocuted frequently.

Lu Jin was already eager to try out the machine, but seeing Li Chang'an's current state, he couldn't help but worry.

"Go back first, put everything else aside. Your grandfather will have the kitchen prepare some good food for you, so you can recover first."

Li Chang'an did not refuse. He was indeed not in good condition. It was like someone who had not worked out for a long time suddenly going through a super high-intensity strength training session. It would be difficult for him to recover in less than ten days or half a month.

The three returned to Li Chang'an's courtyard.

Lu Jin arranged for Lu Lin to look after things while she hurriedly went out.

Not long after, Lu Jin returned.

He was holding several exquisite porcelain vases in his hand.

Inside were some previously refined Marrow Cleansing Pills, some Qi-Replenishing Pills, and Bigu Pills for seclusion, among others.

These pills had little effect on Li Chang'an, but since they were made from some precious medicinal herbs, they still had some ability to nourish his blood and qi.

Without thinking twice, Lu Jin stuffed all the pills into Li Chang'an's mouth.

Not long after the pill was taken, the meal from the kitchen was delivered.

The food delivered today was specially ordered by Lu Jin; the quantity and quality were more than double what they usually were, including century-old ginseng, lingzhi mushrooms, deer antler, he shou wu (Polygonum multiflorum), angelica...

It can be described as a highly nourishing food; an ordinary person might get a nosebleed after just a few bites, but Li Chang'an now eats it like a meal.

It's fortunate that the Lu family is so large and powerful that ordinary people really can't afford it.

"Eat more! Eat more!"

Lu Jin pushed a bowl of ginseng and black chicken soup in front of Li Chang'an.

Li Chang'an didn't stand on ceremony, picked up the soup bowl and drank it. While eating, he didn't forget to invite Lu Jin and Lu Lin:

"Grandpa, cousin, you should eat more too. That stuff consumes a lot of energy. You need to build up your energy reserves so you'll have the strength to fight off the electric shocks later."

Upon hearing this, Lu Lin was about to pick up her chopsticks when she felt that her senior brother's words made this meal sound like a last meal before her execution.

But there was no time to think about it anymore. It was just a last meal; only after eating would I have the strength to be electrocuted.

The two grabbed their bowls and chopsticks and started eating. They devoured the nutritious meal on the table in no time.

After finishing his meal, Li Chang'an sat cross-legged on a chair, closed his eyes, and circulated his Qi to accelerate the transformation of the acquired water and grain.

In his intermediate state of consciousness, he could see the medicinal power of the food and pills transforming into warm currents in his stomach and abdomen, flowing into his limbs and bones.

His body is slowly replenishing its deficiencies. However, it will take some time for him to fully recover, since he doesn't have the digestive abilities of someone like the Six Treasures Immortal Thief.

"I feel much better."

Li Chang'an opened his eyes and exhaled. Due to excessive energy expenditure, he did not plan to activate the Reverse Life state again today.

"Let's go to the backyard and continue. I'll call you this time." He stood up and nodded to Lu Jin and Lu Lin.

"It's just body tempering, why all this talk about electricity? It sounds really scary," Lu Lin said softly.

"Hahaha!" Lu Jin laughed loudly.

The three of them returned to the small courtyard where the high-voltage electric refining equipment was stored.

Li Chang'an walked to the control panel and skillfully turned on the power switch.

"Cousin, it's your turn this time."

"I'll do it."

Looking at the instrument, Lu Lin took a deep breath and activated her profound internal energy.

A wisp of white hair appeared, and two points of white light shone deep in his pupils. His short hair turned white inch by inch from the roots.

Then, he took off his outer robe, went shirtless, and sat down in front of a chair.

Li Chang'an picked up the conductive patches and attached them to his limbs: "To avoid any sudden accidents that could damage your internal organs, you should protect your internal organs with Qi in advance."

"Understood, Senior Brother!"

Lu Lin quickly did as instructed. In a calm state, it was not difficult to do this step. For example, when the Tang Clan was cultivating Qi Poison, they would wrap their internal organs with a Qi membrane to prevent the poison from entering their lungs.

After a moment, Lu Lin said, "Everything is ready, let's begin!"

Li Chang'an tapped the power button, walked to the control panel, and turned the knob to the first position.

The current flowed into the patch, and Lu Lin didn't react much. At this setting, it felt like someone was giving him a muscle massage, which was quite comfortable.

"Second gear, senior brother!" Lu Lin said.

Li Chang'an turned the knob to the second position.

The current increased, and Lu Lin frowned, but quickly relaxed.

This level represents the intensity of electrocution interrogation, which would be excruciating for an ordinary person, but for Lu Lin, who is in a state of reverse rebirth, it is hardly a test.

After getting used to it for a while, Lu Lin said, "Senior brother, let's go to the next gear."

"In third gear, be careful of your internal organs."

Li Chang'an gave a reminder and pushed the knob to the third position.

A dark blue arc of electricity exploded at the patch, producing a crackling sound.

This is already a deadly electric current.

Lu Lin also began to feel unwell. Burns started to appear on his body, and white light surged around him as he recovered through Qi transformation.

At the same time, the electric current began to invade his internal organs, but fortunately he had set up a Qi cage in advance, and the electric current flowed along the Qi cage without harming him.

However, this also presents a problem: the protection of internal organs takes up a lot of mental energy, which will inevitably affect the transformation of Qi on the body surface.

Qi transformation is not a passive ability, but an active one, and it also requires mental exertion.

Multitasking was a bit strenuous for Lu Lin, but gradually, he found that after overcoming the physical pain time and time again, his consciousness became clearer.

He began to carefully experience himself.

He quickly realized that while the intensity of level three could effectively hone his willpower, it couldn't truly tear apart his rebellious spirit.

If you can't tear and regenerate, it doesn't count as resistance training, and the improvement will be minimal. You need to increase the intensity.

"Senior brother... add... add one more level!"

Because of the electric current, their teeth were chattering and their voices were somewhat distorted.

"Remember to protect your internal organs."

Li Chang'an said something and turned the knob to the fourth position.

This is enough power to electrocute all the fish in a fishpond.

As soon as she shifted into this gear, Lu Lin instantly lost her composure.

An electric current surged wildly through his body. Although he managed to protect his internal organs, his muscles and bones felt as if they were being torn apart, each beating its own accord.

In this situation, he struggled in the chair, his back arched into an exaggerated curve, while his neck was tilted high.

He tried to scream, but the muscles and bones in his throat were also trembling violently from the electric current, and the sound he made was so distorted that it was completely indistinguishable.

At the same time, because of the excessive current in his body, tree-shaped bolts of lightning actually spewed out from his wide-open mouth.