[Congratulations, User, for the completed mission: Holy Land Tour]

[Mission completion status: Recovered three keys.]

[Mission evaluation: S+]

[Reward: 3 million experience points, 20,000 general points, a golden legendary lucky draw ticket.]

So the special reward for collecting three keys is a golden lucky draw ticket?

Lu Zhou thought it would be something more special; he didnt expect it to be so ordinary.

Of course, this reward was only ordinary when compared to other legendary missions. For a normal mission, receiving three million experience points and a golden legendary lucky draw opportunity was quite good.

After all, based on previous lucky draw experience, if the lucky draw was legendary, the items drawn out would not be [garbage].

As for the golden legendary lucky draw, it was even better; all of the items that were drawn out were good.

The only thing Lu Zhou was worried about right now was whether or not he could get lucky.

If not, that would be a shame.

System, open the lucky draw panel!

Light golden light particles emerged from the system space. As the light particles converged towards the center, a round roulette wheel appeared in front of Lu Zhou.

The roulette wheel started to spin after he pressed the button.

Lu Zhou stared at the rapidly spinning roulette. He muttered a prayer in his heart and pressed the button for the draw again.

Scanner gun! Scanner gun!

F*ck!

The pointer of the roulette wheel passed by the prize he wanted the most, and after continuing to spin for two more times, it slowly stopped.

[Congratulations to the user!] appeared in the holographic screen, followed by the pop-up [Received: Nitrogen Shield (Rechargeable)]. Lu Zhou felt dumbfounded.

Sure enough, he was not good at games that were all luck, no mathematics.

The only good thing is the rechargeable part?

The first nitrogen shield drawn from the system space was a one-time use. When he was on the N-177 flight, he had already used up the last bit of energy from that thing.

Like the scanner gun and other disposable samples that Lu Zhou had received, the one-time shield degraded into black dust and dissipated in the air.

Although he didnt know what kind of energy this rechargeable shield required, at least it provided him with an opportunity to figure out the technology behind it.

Lu Zhou himself was also quite curious about how the shield generator interfered with the surrounding nitrogen molecules and compressed them into a shield for defense.

From what he knew, there was no technology similar to this on Earth.

A life-saving tool, coupled with the opportunity to discover new technologies; from this perspective, this reward was nothing to complain about.

Finally, he took a look at the description of the nitrogen shield. He turned off the inventory and continued to cast his sight on the characteristic panel on the holographic screen.

Three million experience points.

There was no doubt a huge sum.

The experience points required from level 8 to level 9 was only three million in total. In other words, he could use this experience to directly upgrade any discipline from level 8 to level 9 and start the promotion mission to level 10.

The question is which one to choose.

Its hard to decide

After thinking about it for about ten minutes, Lu Zhou finally made a decision to allocate 937,000 experience to materials science, and all the remaining experience points to engineering.

Considering that the Pan-Asian Cooperation was promoting the space elevator program, it would be appropriate to regard materials science and engineering as important disciplines.

A light blue light swept across the holographic screen, and after a short wait, the updated characteristic panel quickly appeared in front of Lu Zhou.

[

A. Mathematics: Level 10

B. Physics: Level 10

C. Biochemistry: Level 8 (10,000/3 million)

D. Engineering: Level 8 (2.063 million/3 million)

E. Materials Science: Level 9 (0/???)

F. Energy Science: Level 8 (0/3 million)

G. Information science: Level 8 (0/3 million)

]

When Lu Zhou looked at the requirement for materials science experience that turned into three question marks, he couldnt help but look emotional.

Materials science will be level 10 soon.

Finally, its been a while.

Lu Zhou turned off the characteristic panel and cast his sight on the mission panel.

As he expected, the option to receive the promotion mission had already appeared in the list on the mission panel.

After he pressed the button for receiving the mission, the light blue task window quickly appeared in front of him.

[Promotion mission activated!]

[Mission: Future materials.]

[Explanation: It goes up into the earth, then breaks out from the ground, gaining ultimate power from all things good and bad.]

[Requirements: This is the final problem in materials science. Use the most perfect material to complete your graduation project, and we will give rewards based on your score.]

[Rewards: Material Science LV10,? ? ? ]

Future material?

For Lu Zhou himself, everything in this era was the future, but from the systems point of view, it was obviously not enough.

And this graduation project

Sounds a bit evil but fun.

After confirming the requirements of the system mission, Lu Zhou turned off the holographic panel. He left the system space and returned to the basement of the Jinling Institute for Advanced Study.

He didnt think of a good solution for the time being, so he decided to leave everything, including Xiao Ais server, here temporarily. He got on the elevator and left the basement, then returned to the top floor of the Institute for Advanced Study.

After seeing Lu Zhous return, the tour guide was relieved. She jokingly said, I thought you were lost. I almost asked a male colleague to find you in the toilet.

I wasnt lost. I just took a little longer in the toilet. Lu Zhou looked out the window and said, Its getting late, thank you for staying with me for so long. I will go back now.

Huh? She seemed a little surprised that Lu Zhou was about to leave so soon. Yang Lu said, Arent you going to stay a little longer?

Lu Zhou shook his head and said with a smile, No, Im already satisfied to see you protect my laboratory so well.

Laboratory?

Isnt this his office?

The young lady guide was slightly confused.

However, Lu Zhou didnt intend to explain himself. After saying goodbye, he turned around and left.

Lu Zhou drove back to his house. He removed the facial holographic projection system he was wearing on his neck and took a look at the iris recognition at the door.

Almost as soon as he brought his face closer, the electronic door of the front yard opened.

He walked the path through the garden and into the house. He then saw a brand new living room.

When he was gone, Xiao Ai controlled the smart cleaning equipment here and cleaned the entire house inside and out. Not only did Xiao Ai replace the old furniture with new ones, but she also painted the walls.

He couldnt even tell that this house was a second-hand house anymore.

Xiao Ai, who was wearing an apron and followed by a drone, eagerly ran out from the corner of the corridor.

Master, supper is ready, when do you want to eat? (><*)

Now.

Okay! ()

Xiao Ai ran back to the kitchen like a gust of wind. Lu Zhou couldnt help but smile. He threw his coat on the hanger at the door and walked towards the dining room.

Soon, a table of delicious food arrived on the table.

The taste was as impeccable as ever. Lu Zhou sat at the table, eating and watching the news on TV.

Xiao Ai sat on the opposite side of the dining table with her cheeks in her hands. Xiao Ai was dangling her legs under the table when she suddenly froze.

Her eyes became alert.

Master, there seems to be a guest coming outside. (-)

Guest? Lu Zhou raised his head and asked, Who?

I dont know, but it feels like those guys are not very friendly.

Those guys?

So theres more than one.

Lu Zhou put down the chopsticks in his hand. He calmly picked up the tissue and wiped his mouth before asking, How far is Lings location from here?

About two kilometers.

Two kilometers, not too far.

Lu Zhou nodded and said, Ask him to come home first.

Xiao Ai: What about the bad guys outside? ()

Lu Zhou thought for a while and said casually, Sort it out yourself.

Try not to cause trouble to our neighbors.

Xiao Ai: Okay! (*` *)