The little princess looked at the hand Miaoyin handed over, and the anger in her heart instantly disappeared.

She smiled slightly, took Miaoyin’s hand and held it gently, “Yes, Miaoyin.

I want to confirm whether you are adapting here and whether there is anything that needs to be adjusted in your body."

In fact, she wanted to sequence Miaoyin's genes to see what the differences were between her and Qingluan, and whether they were of the same type.

Feeling the warmth in the little princess's hands, Miaoyin's curiosity grew even stronger. "Then thank you very much, little Sizi."

The two smiled at each other, and the atmosphere suddenly became harmonious.

Cheng Jingyi stood aside, watching this scene, a hint of relief flashed in her eyes.

She walked up to them and said with a smile, "Since you are going to get a physical examination, I'll go with you."

"Anyway, I don't have anything to do today, so I'm just sitting around doing nothing."

The little princess nodded slightly in agreement.

So, a group of four went to the laboratory.

Cheng Jingyi thought it was just a routine physical examination, so she didn't think much about it.

However, as they moved forward, she gradually became aware of an unusual atmosphere.

This is because they did not go to the medical center in the park that has a physical examination area.

Instead, he took the park's sightseeing bus and went straight to the mysterious biological laboratory building.

This change caused Cheng Jingyi to feel a sense of inexplicable tension in her heart, and she couldn't help but start to guess the real purpose of this physical examination.

But she didn't show anything unusual, just silently observing everything around her.

The appearance of the Biological Laboratory Building is modern and technological, and the towering glass curtain walls sparkle in the sun.

The sightseeing bus slowly stopped in front of the building. The little princess jumped out of the bus first and led everyone into the building.

The interior decoration of the building is also full of technology, with a series of sophisticated laboratories on both sides of the corridor.

Through the transparent glass windows, you can see the busy figures of scientific researchers.

Cheng Jingyi noticed that the equipment here were all the latest models, and there were even some instruments she had never seen before.

Researchers in white lab coats kept passing by along the way, each with a serious and focused expression on their face.

When she finally followed the little princess and Miaoyin into a heavy metal door, the scene before her shocked her.

This is a high-tech and sophisticated biological genetic laboratory, equipped with all kinds of advanced instruments and equipment.

Data and images kept flashing on the screen, and the entire space was filled with the atmosphere of futuristic technology.

Cheng Jingyi couldn't help but be stunned. Although she was a knowledgeable person, this was the first time she had seen a laboratory of this level.

She turned to look at the little princess, a questioning look flashing in her eyes, "Little Sizi, where is this..."

The little princess smiled slightly and explained, "Sister Jingyi, this is my private laboratory.

Don't worry, this place is very safe, and the equipment is all state-of-the-art. It will be no problem to give Miaoyin a full checkup."

"Miaoyin, lie down!" As she said that, she skillfully operated the instruments and began to perform a physical examination on Miaoyin.

Miaoyin also seemed very cooperative and carried out various tests according to the little princess's instructions.

Cheng Jingyi observed silently from the side. She found that the little princess's operation was very professional, and every step was rigorous and orderly.

At the same time, she became more curious about Miaoyin's identity.

What kind of existence needs to be examined in such an advanced laboratory?

As time goes by, various inspections are gradually completed.

The little princess stared at the data on the screen, her brows furrowed, as if she was thinking about something.

Cheng Jingyi couldn't help but ask, "Xiao Sizi, how are you? How is Miaoyin's health?"

The little princess did not answer immediately, but continued to stare at the screen, her fingers tapping rapidly on the keyboard, as if analyzing something.

After a while, she raised her head and looked at Cheng Jingyi and Miaoyin with a slightly strange expression.

But he said, "No problem, Miaoyin is in very good health, even healthier than an average person."

As the little princess spoke, a hint of deep meaning flashed in her eyes.

Cheng Jingyi heaved a sigh of relief when she heard that. She looked at Miaoyin and smiled, "That's good. It seems we were worrying too much."

Miaoyin also smiled slightly and expressed her gratitude to the little princess: "Thank you, little Sizi."

However, in reality, the genetic testing of Miaoyin was far from as simple as the little princess said.

After comparison, the little princess discovered that most of Miaoyin's gene fragments were the same as those of ordinary people, or there were no significant differences.

Only the gene fragment responsible for lifespan appears to be unusually special.

This gene segment is not only unusually stable, but also contains a sequence that has never been seen before.

This sequence does not exist in any biological database known to the little princess.

After in-depth research, the little princess discovered that this gene seemed to have the ability to repair and regenerate itself.

It can greatly delay cell aging and even achieve cell "immortality" to some extent.

Theoretically, organisms with this gene would have a lifespan far exceeding that of ordinary humans, potentially reaching thousands or even tens of thousands of years.

Doesn’t this mean that in the future they will actually have control over immortality?

But if that is the case, where did the glorious Tang Empire go in the future?

Why are there not many traces left after thousands of years?

Could it be that... the Tang Dynasty did not exist for long.

Is it because this longevity gene has not been widely circulated, or is subject to some kind of restrictions?

Or is this longevity gene some kind of curse?

The little princess's mind was full of questions.

She thought of the legends throughout history about the pursuit of immortality and the kings who sought eternal life but ultimately failed.

Perhaps, they had come close to this secret, but missed it for various reasons.

The little princess took a deep breath and temporarily suppressed this shocking discovery.

She knew that once this secret was leaked, it might lead to unpredictable consequences.

So the little princess decided not to tell anyone.

Once she succeeds in the experiment in modern times or even in the Tang Dynasty, she will share it with Xiao Rangjun as soon as possible.

"Little Sizi, what are you thinking about? Why are you smiling so happily?"

Just as the little princess who traveled back to the Tang Dynasty was immersed in a bright future.

Li Lizhi came behind her at some point and asked softly.

The little princess came back to her senses and turned to look at Li Lizhi, "Sister, I have found traces of immortality in the fairyland."

"In the near future, whether it's us sisters, Xiao Chengyang, Yeye, A'niang, and... Zhinu, even Xiangxiang, they will all have hope of immortality!"

"Really?!!" Li Lizhi's eyes lit up when she heard that, her face full of disbelief and surprise.

She grabbed the little princess's hand and asked in a trembling voice, "Little Sizi, are you telling the truth?"