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The courtyard is extremely quiet and the air is fresh.

Lying on the couch, Cao Hongtian's face was covered in sweat, his white robe was soaked, he bit his lips tightly, his face flushed, but he did not cry out in pain.

Silver needles were inserted into most of the acupuncture points on his body, and it felt like countless ants were biting his flesh and blood. Even after experiencing countless life-and-death battles, this feeling still made him feel like his days were long and painful.

But he is Cao Hongtian after all, a famous general of the Republic, and his reputation as an iron-blooded tough guy is not undeserved.

Tang Xiaobao was lying in front of the couch, his face also covered in sweat. He looked very focused as he pinched the silver needle and twisted it continuously.

Beside them, the Cao family father and daughter looked nervous. The housekeeper and several servants were also standing aside, all staring intently at the sickbed.

The acupuncture treatment has lasted for two hours. This is the most difficult treatment Tang Xiaobao has ever received since his debut.

"Ding! Congratulations on reaching the pinnacle of acupuncture and obtaining the innate energy."

Suddenly, a system reminder came from his mind. Tang Xiaobao's face lit up with joy, and he felt a cool air suddenly filling his blood.

Is this the innate qi?

Tang Xiaobao had seen an introduction to innate qi in medical books, but had not seen how to obtain this innate qi. He did not expect happiness to come so suddenly.

The innate qi can keep people healthy and maintain energy and endurance far beyond that of ordinary people.

The cool air circulated among the acupuncture points at an extremely fast speed and soon returned to the Dantian, becoming an air ball the size of a thumb.

Invisible and intangible, but it really exists.

Tang Xiaobao was originally extremely exhausted and was about to give up, but with the generation of this innate energy, his energy was immediately restored and he felt no fatigue at all.

As his mind moved, the innate energy flowed along the acupuncture points to his right arm, finally flowed to his fingertips, and entered Old Master Cao's body along the silver needles.

Old Master Cao's body trembled, and he was also nourished by the innate energy, and even groaned slightly.

It was not pain, but joy.

Tang Xiaobao gained more confidence.

Tang Xiaobao was already familiar with the method of using the innate energy, so he did not seem awkward when using it this time.

The innate energy circulated in Old Master Cao's body, constantly stimulating his vitality. Tang Xiaobao increased the speed of pinching the silver needle, and a dark gas that was invisible to the naked eye emanated from Old Master Cao's body.

There was a foul smell in the air, which was the impurities in Old Master Cao's body.

About another hour later, Tang Xiaobao took the innate energy back into his body and stored it in his dantian, where it once again became a thumb-sized ball of air, safe and motionless.

Tang Xiaobao began to withdraw the needle.

He was still withdrawing the needle extremely fast. The onlookers only saw a shadow. Tang Xiaobao had already taken a breath and stepped back a few steps.

Uncle Fu's eyes were shining. He glanced at Tang Xiaobao with a strange look in his eyes.

The layman watches the excitement, while the expert watches the details.

Uncle Fu has followed the old man for more than ten years. He was not only a prodigy in the army, but also a master in medicine. Naturally, he could see the brilliance of Tang Xiaobao.

Cao Jianguo, Cao Jianjun, and Cao Ying all gathered around.

"How is it?" Cao Jianguo asked first.

Tang Xiaobao waved his hands and said with a wry smile, "There are too many impurities in the body, and the disease is severe. It will take more treatments, at least three days and nine acupuncture treatments, before it can get better."

Cao Jianguo nodded immediately and instructed the servant beside him: "Hurry up and prepare a room for Mr. Tang."

Old Master Cao opened his eyes and frowned.

The white robe he was wearing had become extremely dirty, with black and purple spots, and it emitted a very pungent odor.

"It stinks." The old man shrugged, but his energy was stronger than before the treatment.

Everyone looked strange and was too embarrassed to say anything.

"Mr. Tang, you should go take a shower first." Tang Xiaobao couldn't help but remind him.

The old man was a little embarrassed when he was helped up, but he soon burst into laughter: "Xiao Tang, your acupuncture skills are really amazing. Even though it's only been one acupuncture, I feel like my body is much stronger than before. It seems that I really have to look at you with new eyes."

"Grandpa, you should go wash first." Cao Ying covered her nose and smiled mischievously.

Tang Xiaobao turned his head to look at Cao Ying and chuckled.

Hey, I didn’t expect that the queen has such a cute side.

Cao Ying shut up, glared at Tang Xiaobao fiercely, and stopped talking.

"Haha, what's wrong? Do you think grandpa stinks?" Old Master Tang scolded with a smile.

"It stinks anyway." Cao Ying blinked.

"What's going on?" Old Master Tang asked Tang Xiaobao curiously.

Tang Xiaobao explained, "To stimulate your body's vitality and restore the power of your organs, the first step is to cleanse your body of impurities and toxins. Elder Tang probably lived in poor conditions when he was young, and too many toxins have accumulated. This cleansing isn't thorough, but it's quite effective."

"And I have good news. After the acupuncture treatment, I found that Elder Tang's physical condition is not as bad as I thought. His willpower, in particular, is beyond ordinary people. If this is the case, he is very likely to become a true centenarian."

"Really?" Cao Jianguo looked surprised.

Originally, I was supposed to live for three to five years, but now it has become ten years. This is of course a great thing.

The Cao family is counting on the old man to hold on for a few more years. What's more, the Cao family is united, and no one doesn't want the old man to enjoy a few more years of happiness.

Old Master Tang laughed heartily: "Okay, okay, okay, from now on, every year when I celebrate my birthday, Xiao Tang, you must come. When I celebrate my 100th birthday, I will give you an extra-large red envelope, haha."

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