An An looked up at her in surprise, and she continued, "I not only miss you, but also everyone in the family."

Hearing this, a hint of disappointment flashed across An An's eyes, and he lowered his head again.

After a while, she regained her expressionless face and looked up at Xu Sihan, "Sister, are you going out again after you come back this time?"

Xu Sihan took out a dry towel and continued to wipe his hair. "See what's planned later. If there's a special mission, go out."

"Why are you asking this?" Xu Sihan had no other thoughts and simply thought that she was just asking.

"No." An An shook his head and took out a small box from his pocket. "This is a gift for you. Welcome home, sister."

She showed a faint smile and looked at Xu Sihan.

"Wow! There's a gift!" Xu Sihan didn't expect that she would give him a gift, "Thank you, An An!"

I took the box and opened it, and what came into view was a necklace.

A necklace made of crystal source, the blue crystal source emits a faint fluorescence, and the silver chain is inlaid with broken diamonds.

Even in the dark, the whole necklace glows.

Xu Sihan couldn't help but stare at it in amazement, "It's so beautiful, where did you get it from?"

An An didn't reply to her, but walked forward and asked, "Do you like it, sister?"

Xu Sihan nodded, "I like it!" It's so sparkling, anyone who sees it will like it!

"Then I'll help you put it on." An An took the necklace out of the small box, stood behind Xu Sihan, carefully moved her hair away, and put it on her fair neck.

The two were very close, and An An's breath was lingering around Xu Sihan's ears.

It was not until she felt a faint chill in her chest that Xu Sihan reacted and looked down at the necklace around her neck. "Thank you, Xiao An'an! My love for you is not in vain!"

An An stared at the necklace on her neck, and an unknown light flashed in his eyes.

"Then I'll go out first, sister, you change your clothes."

After saying that, he left Xu Sihan's room.

Xu Sihan watched her leave with relief, all he could think about was that the child had grown up and knew how to take care of his sister!

An An leaned against the wall in the corridor, breathing rapidly, and her earlobes, hidden by her hair, turned slightly red.

He returned to his room only after his breathing calmed down.

Underground research room.

The latest generation of energy communicators has been successfully developed, with the addition of a conversation function.

Previous communicators could only send messages.

Researchers have thought about installing energy chips on the mobile phones they already use, but all attempts ended in failure.

Although the mobile phone has complete functions, it cannot receive energy signals, so we can only develop an energy communicator independently.

Jiang Yuyao stood in the greenhouse with a communicator in her hand, talking to Mu Youling who was standing in the laboratory.

"Did you hear that?"

"Yes! Very clear!" Mu Youling's clear voice came from the communicator.

Returning to the laboratory, Tao Heng was excited, "Finally succeeded!"

He is specifically responsible for the research of energy communicators and has more than a dozen scientific researchers under him.

For more than 203 years, central scientific researchers have lived in the underground shelter, and all energy instrument research and development work and important secrets are kept in the Jiang family shelter.

It is divided into more than a dozen small teams, and each team is responsible for developing different things.

The remaining scientific researchers are distributed in various locations, responsible for maintaining R&D work.

Jiang Yuyao nodded and said, "Send this thing to Xinghuo, and Ke Yi will arrange for people to produce it in large quantities."

"understand!"

Tao Heng agreed and left the laboratory with two communicators.

As soon as he left, Ke Liming came in.

"Yuyao! You're here!" Seeing Jiang Yuyao there, he didn't have to go up to find her.

"what happened?"

Jiang Yuyao looked at him.

Ke Liming yawned and pointed upwards, "That big guy up there is too difficult. I stayed up all night yesterday and still couldn't figure it out."

"Professor Ke! I told you to do your research during the day. If Ke Yi finds out, he will come after me and A Yao!"

Mu Youling tried to persuade her earnestly, but shook his head and sighed helplessly.

Ke Liming waved his hand, "It's okay! It's not a big deal, I can't sleep because I can't figure it out!"

Just as I was about to continue speaking, a person walked in from the door of the laboratory.

"What are you talking about? Add me."

Xu Sihan walked into the laboratory with a smile, his eyes darting between several people.

“Sihan!” Mu Youling was the first to react and hugged her excitedly, “Didn’t you say you would stay in Xinghuo for a while? Why did you come back so suddenly!”

Xu Sihan complained, "Don't say it. I stayed in the Spark Shelter for a few days, and Miaomiao stuck to me for a few days. I couldn't stand Ke Yi's eyes, so I came back early."

"Hahaha." Mu Youling couldn't help laughing out loud. This was something Ke Yi could do!

She remembered that during the Chinese New Year last year, Ke Yi, as the boss of the Spark Shelter, could not leave easily, so Miaomiao returned to the shelter to celebrate the New Year with everyone.

As a result, just after the New Year’s Eve dinner, Ke Yi sent someone to pick her up.

When Ke Liming heard what his granddaughter had done, he touched his nose in embarrassment and didn't say anything.

Jiang Yuyao stood aside, a smile flashed in her eyes and the corners of her mouth raised slightly.

"What were you talking about just now?" Xu Sihan asked again.

"Ayao and I just tested the latest generation of energy communicator. As long as there is an energy signal, we can talk at any time."

Mu Youling explained to her gently.

"Isn't this just like the cell phones from a long time ago?" After hearing her description, Xu Sihan immediately thought of the cell phones that had long been eliminated and could only send messages and make calls.

"Almost." Mu Youling nodded, "But it's more convenient to be able to talk on the phone."

That's right, Xu Sihan nodded in agreement, and suddenly thought of something, "By the way, when I came back, I found a building upstairs, what is it used for?"

"It just so happens that Professor Ke and I are going up there. Let's go and take a look together, and then you'll know." Mu Youling kept it a secret.

Xu Sihan could only follow them out of the laboratory in confusion.

The four put on protective clothing and left the shelter, walking to the huge building not far away.

There is only one small door.

Several people entered through the small door one after another.

The lights were on inside, and people with special abilities wearing winter clothes were constantly walking up and down the corridor.

The whole building has four floors. The central structure is empty and runs through the entire building. The top of the building is capped by a huge arc.

Stairs and corridors are built on each floor, forming a square in the middle.

After seeing clearly what Zhongxi had placed, Xu Sihan froze in place, his eyes wide open, his mouth unconsciously opened.

There was a huge platform in the middle of the building, and on the platform was a spaceship that looked almost like the one in the movie! A huge spaceship!

The design of the spacecraft is simple and efficient, and every detail has been carefully calculated and optimized to ensure that it can navigate in the vast universe.

Jiang Yuyao rested her hands on the railing, her eyes fixed on the spaceship on the platform. "This is just the framework, and other aspects are still under study."

Xu Sihan shook his head in shock, his face full of admiration, "When did the construction start?"

"The building was renovated in the third year of the apocalypse. It took eight years to complete the building. In the same year, Professor Ke led people to build this big thing."

Jiang Yuyao spoke slowly, her eyes shining as she looked at the spaceship. With it, they could travel to Qihuang Star in Centaurus!

"It's a pity that we still haven't found the right material for the thrust engine." Ke Liming sighed, folding his arms across his chest.

At first, Jiang Yuyao assigned him to build a spaceship, and he was so excited! This is a spaceship!

He has never studied such high-tech stuff in his life, so he has to think about it carefully.

"Old Li hasn't come up with any results yet."

Although Ke Liming was the main person in charge of this spacecraft, dozens of powerful people worked together to develop and manufacture it.

"Professor Ke, there will always be a way out when you reach the mountain. Don't be impatient." Mu Youling walked to Jiang Yuyao and spoke to comfort her.

Ke Liming nodded. This was the only way under the current circumstances.

Xu Sihan seemed to be thinking about something, and said, "How do we send such a large spacecraft into space?"

"It's still early. A Yao has already arranged for Professor Li Yueling to start training astronauts, and Professor He Yu is also leading other members to search for the space station left behind in space."

Mu Youling explained, "Since the cold disaster began and the satellite lost contact, China's space station has lost contact. Now we can only try to locate the space station through the two energy satellites that have been launched into space."

"But I guess these will have to wait a long time."

Xu Sihan smacked his lips and said, "I've only been away for a few years, and it's already developed like this! If I had come a little later, energy weapons would have appeared."

"This brother Lu Shang is doing research and development. He used to make military weapons."

Jiang Yuyao silently finished off the enemy, and learned the true skills from Mu Youling.

Xu Sihan shut up. Her heart was traumatized and she would be ruined if she continued talking.

Seeing her reaction, several people present had smiles on their faces.

They chatted for a long time before returning to the shelter.

After returning to the shelter, Xu Sihan saw An An standing in the yard of the villa from a distance with a gloomy face.

"Then I'll go down first."

Ke Liming went to the elevator from another direction.

"An An? What are you doing standing in the yard?"

Xu Sihan took off his protective helmet with a puzzled look on his face.

When An An saw the others coming back together, his gloomy expression improved a little, "Sister Yao, Sister Ling."

He first greeted Jiang Yuyao and Mu Youling, and finally looked at Xu Sihan without saying anything.

Mu Youling felt that the atmosphere was not right for some reason, so he pretended to yawn, "Ayao, I'm a little sleepy."

Jiang Yuyao thought that the black fog in her sea of ​​consciousness had recurred, and she took her people away in worry.

For a moment, An An and Xu Sihan were the only ones left in the yard, staring at each other.

"You haven't answered me yet?" Xu Sihan walked closer to her and asked the same question again.

"Catch the liar." An An's tone was cold, but the gloom in his eyes dissipated a little.

"Liar? Who cheated you?" Xu Sihan was even more confused. There are actually liars nowadays!

An An sighed secretly, "Let's go, grandma made a small cake for you."

"Little cake!" Xu Sihan's eyes lit up. She hadn't eaten the little cake made by Grandma Liu for a long time!

"Let's go, let's go eat some cake!" He instantly put what happened just now behind his mind.

Jiang Yuyao returned to the bedroom and immediately used her special powers to examine Mu Youling's body.

Mu Youling took off his protective suit and said with a smile, "I'm fine, Yao."

Jiang Yuyao felt relieved only after finding nothing unusual. She took off her protective suit and lay down on the bed holding the person.

"I don't know what happened to Qiu Huai. She's been gone for more than 24 years..."

"Don't worry, she'll be fine."

Jiang Yuyao's tone was affirmative, but Mu Youling didn't notice the affirmation in her words.

Mu Youling was not sleepy at first, but gradually he became drowsy and fell asleep in her warm arms.

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