Towards the end of the wedding, Lin Han and Luo Xuan came out to breathe, chatting casually while taking a walk.

Lin Han ...... Anyway, I want to thank you for my illness this time. Luo Xuan said softly.

Lin Han trembled in his heart when he heard this.

Since he knew that Luo Xuan was his own sister, he subconsciously changed his name, no longer calling him "senior sister", but by name.

However, this is obviously a foolish approach, because a change of title is often a self-evident signal between people, indicating a change in the relationship.

There is no doubt that the subtle closeness between him and Luo Xuan, which originates from the depths of the blood, is a two-way street, and both are aware of it.

So in the face of this "obvious attempt", Luo Xuan did not show much discomfort, and then changed his name for Lin Han.

When talking about business, Luo Xuan still calls him "Mr. Lin" or a more relaxed and casual "boss", but when he talks about private affairs, he calls him by name.

I have to say that when he heard Luo Xuan call his name, Lin Han also enjoyed it...... But the development of things made him a little worried.

He might even think that maybe the drug use felt something similar. Emotionally enjoyable, intellectually terrified.

"That, Luo Xuan, actually, I'm ......" he frowned, trying to confess the truth to her.

Luo Xuan suddenly said at this time: "I want to find my brother." ”

"Huh?" Lin Han was stunned.

Luo Xuan said slowly: "After this time, I think I should adjust myself, in addition to exercising and studying like you, I should also have some ...... Intimate relationships, such as loved ones. ”

"The only relative who can be accepted by me now is my younger brother...... I don't know where he is now or how he's doing. ”

Lin Han smiled reluctantly: "Actually, in terms of your family, your younger brother may be lucky to leave early." ”

"At least, judging from my own experience in the orphanage, I can still feel fortunate from your experience. ”

Luo Xuan nodded, and then said as if very casually: "Yes, I sometimes wonder if he will become as powerful as you now." ”

Lin Han's heart was weak for a while.

Luo Xuan continued: "I have always felt that I am quite anxious...... Only when I think of taking care of my younger brother when I was a child and watching him slowly fall asleep will I feel at ease. ”

As she spoke, she couldn't help but smile slightly, with a little satisfaction.

It can be seen that as an older sister, she really loves her younger brother, and even regards her younger brother as her spiritual sustenance.

Lin Han touched his nose helplessly, and said after a while: "If you can find your brother, what are you going to do......?" Besides, it may not be possible to find it. ”

Luo Xuan was silent, lowered her head and didn't speak for a long time.

In this way, the two walked wordlessly for a long time.

I don't know why, gradually, the two of them got closer and closer, and their hands touched from time to time, like two leaves on the same branch in the wind, and the heart-pounding atmosphere became more and more intense.

Without any accidents, the two finally took each other's hands and walked for a while.

Holding Luo Xuan's soft hand in his palm, while walking, Lin Han couldn't help but emphasize in his heart: "It's just holding hands, holding hands." Sister and brother holding hands, it's normal, nothing ......"

In a mess of mind, he wasn't even sure when Song Shuqing's wedding would end.

After leaving from the wedding and returning to his residence, Lin Han couldn't help but feel that he really should go out and stay for a while to let go and relax.

……

A few days later, Lin Han came to the Vientiane Laboratory, to be precise, it should be the third laboratory in Vientiane.

After several years of development, especially after absorbing the foundation of a number of national laboratories, the Vientiane Laboratory has expanded very rapidly, whether it is personnel, equipment, or venues.

Among the three parts of the Vientiane Laboratory's external claims, the first laboratory has always been synonymous with mysterious technology, unfathomable, and there are only legends in the outside world.

The second laboratory focuses on theoretical research, with academic experts such as Yang Zhenning and Yao Qizhi in charge, while the third laboratory focuses on engineering practice.

At this time, he was standing side by side with a middle-aged man in a white lab coat, looking at the white round container in front of him.

"This is a container made of nitrogen ice?" Lin Han asked.

The middle-aged man nodded: "Yes, after our preliminary design and experiment, this nitrogen ice container can meet your requirements, and it is more convenient to produce a small amount." ”

"What do you think, do you want to improve it a little more?"

Looking at the fist-sized, white, and extremely cold white round container in front of him, Lin Han couldn't help but nod secretly.

This nitrogen ice container is a "cover" specially prepared by him in order to clean up invasive species in the United States.

After all, the United States is not the same as the country, and his own influence in the United States is limited, so many things are inconvenient to hide.

For the sake of safety, Lin Han felt that it was better to make a little form and cover up.

Of course, this cover must also be ethereal, preferably without leaving any traces and making it elusive.

At first, he thought about making a hollow container out of dry ice, making it look as if it contained some special substance, throwing it into a natural body of water, and then using his power to eradicate invasive species.

Dry ice is a solid carbon dioxide that, as long as the amount is not large, will quickly vaporize and disappear when put into water.

However, after thinking about it again, he realized that dry ice quickly vaporizes into carbon dioxide gas in water, which inevitably forms carbonic acid with water, leaving some traces of substance.

So Lin Han replaced the dry ice with nitrogen ice, which is solid nitrogen.

As a gas that occupies more than 70% of the atmosphere, nitrogen is ubiquitous and can be detected anywhere in nature.

Moreover, it is also a chemically inactive gas that is not easy to react with.

Once the empty nitrogen ice container is rapidly vaporized, with the strong nitrogen background in the atmosphere, nothing abnormal can be detected.

"Yes, that's it. ”

Lin Han nodded and said, "Produce a batch as soon as possible, someone will contact you at that time, and you don't have to worry about the rest." ”

"Okay, Mr. Lin. ”

After this batch of nitrogen ice containers is produced, of course, no processing will be done, and no substances will be loaded, so they will be shipped directly to the United States.

So when the production was about to be completed, Lin Han took a ticket of people and flew directly to the most powerful country on the planet - the United States.