Pick up garbage in another world and bring it back to build infrastructure in the end times

"Okay, I'll trade you the house-building tool for the gold, but don't tell anyone else about this. If you leave the wilderness, you must put the house-building tool away."

Sang Chu was shocked when she heard this. She only knew that the house-building machine could build a house, but she didn't expect that it could be taken away at any time!

"Okay, I know, thank you, Doctor!"

She glanced at Hua Xi and was about to pull Sang Chu away when Sang Chu said, "Doctor, wait a minute. I want to sell these monsters first."

Sang Chu took out the storage box, and Hua Xi and Hua Chu remembered that Sang Chu had just returned from the wild.

Dr. Li: "Okay, I'll wait for you here. Please hurry up."

Hua Xi took Sang Chu to the trading area.

"Sang Chu, just hand the storage box to the robot. After the settlement, the gold coins will be automatically transferred to your account. Every mercenary's storage box is bound to the team leader's computer. Since you are alone, it is directly bound to your computer. When you are ready to go on a mission next time, you can come back to get a storage box."

It is not so easy to clean up the monsters, so usually the gold coins are settled first, and the monsters in the storage box are kept and cleaned up slowly.

Sang Chu didn't know what the procedure was, so he could only nod and leave with Dr. Li.

Research Institute

Dr. Li handed a small ball to Sang Chu and said, "This is a house-building machine. It is the latest light and energy robot. If you want to build a normal house, it will take about a minute. If you want to build a city, it may take a month.

You should pay attention to the three lights on it. The green light indicates that the light energy is sufficient, and the orange light indicates that the light energy is at a low level. You need to recharge it in time. After the red light flashes three times, the robot will enter sleep mode.

"Doctor, how do we charge the light source?"

There is no light energy to charge her in the apocalypse!

Dr. Li smiled and said, "I have five permanent light energy systems. If you can afford the price, I'll give them all to you!"

"How many star coins do you want?"

Dr. Li: "That depends on how much gold substance you can give me!"

Looking at the smile on her face, Sang Chu's pupils widened slightly unconsciously and he took a step back.

Dr. Li chuckled softly and said, "Don't worry, I won't tell anyone about you, otherwise I wouldn't have brought you to the institute. This is my place, no one else is allowed in. My glasses can see the gold element in your body, so these must have been made by you, not picked up."

Seeing that Sang Chu didn't speak, Dr. Li was afraid that she would think he was a bad person, so he explained:

"I don't mean to threaten you, it's just that the monsters are causing too much damage to us. You can see in the wild that the monsters occupy more land than humans. That's because the monsters secrete a toxic gas that will stimulate the growth of plants.

While those plants aren't as dangerous as the monsters, they can't be ignored. Human habitation is shrinking, while the monsters are proliferating, making them difficult to clear out. This has also led to smaller and farther distances between people. For example, it takes five months to travel from City A to City B by hovercraft. You've been out for that long and haven't even seen the next city, right?"

Sang Chu nodded. She thought it was easy to use plants to attack monsters, but she didn't expect that it would be difficult for the locals as well.

Dr. Li: "So, Sangchu, I'm not threatening you, but asking you. If you still have these materials, please sell them to me. I'll pay you any price. I don't want to wake up one day and find myself losing my home and having to move to another city."

Bunny: [You can agree to her, she's not a bad person.]

Sang Chu hesitated for a moment and asked, "Doctor, besides seeing the gold element in my body, what else do you see?"

Dr. Li instantly understood what Sang Chu was thinking, and quickly walked to the machine nearby to synchronize what he observed with his glasses.

"Wind element, gold element, this should be wood element, fire element, earth element, and water element. They all form a sphere and rotate within your body. The wind element is the strongest among them."

This picture was very clear, and it was the first time that Sang Chu realized that this was the kind of person he was in her eyes.

"Dr. Li, could you sell me one of these glasses?"

"I'm afraid that won't work. This is a uniformly distributed document issued by our superiors, and it has a code. Outsiders can't use it. I haven't figured it out yet. The house-building device I'm giving you is something I developed myself, so it's fine for me to sell it to you. I also tinkered with the light energy storage device myself."

"Okay, then I'll condense the gold for you. What else can you give me?"

"what do you want?"

Sang Chu thought for a moment and said, "Food, plenty of food and water, as well as space ties, physiological inhibitors, weapons, hovercrafts, and optical computers. These two are expensive, but I need at least two. Of course, the more of these things, the better."

Dr. Li looked at Sang Chu in shock, gritted his teeth and said, "Okay, I'll prepare it for you."

Sang Chu: "Hurry up, four days. During these four days, you help me prepare the things and I will help you condense the golden beads."

Dr. Li: "Give me a rough estimate?"

Sang Chu pointed to a box beside him and said, "I can give you a box of gold beads of about this size."

Dr. Li: "Okay, I understand. Go back and rest. I'll keep you posted for the next four days. Don't let it be like before when I couldn't find you."

Sang Chu smiled and said, "No."

The two of them separated after adding light to their heads.

‘Ding dong——’

There was a sound, and Sang Chu saw a message that suddenly popped up on his computer: [You have received 20 million star coins.]

When Bunny saw the message, he jumped up excitedly on Sangchu's shoulder: "Wow, that's a lot of money! You're worthy of being the ticket holder I chose~"

Sang Chu was also infected by the excited voice: "Then I will pass it to you."

[Hmmmmmm!!]

Sang Chu didn't know how to operate it, so Tuyou did it herself. She just pressed her little rabbit paw on the light computer, and ten million star coins disappeared from her account in an instant.

She and Tuyou seemed to be tied together by an invisible thread, giving them a feeling of being a community of life.

[Achu, you still have 10 million, what should we do? ]

Tuyou flew in front of Sangchu, flapping his big ears and asking with interest.

Just as Sang Chu was about to speak, Tuyou said, "You don't have to say it out loud. Just communicate with me through your consciousness."

【so? 】

[Yeah, I can hear you.]

Sang Chu thought about it and decided that she couldn't put all her hopes on Li Yue. Who knew if she would go back on her word? So she decided to go buy some things herself.

【I will transfer the money you requested to you first, and then use the remaining money to buy food. 】

Tuyo: [In that case, why don't you give me the money for your next train ticket as well? This is just in case you return to the apocalypse and can't earn enough money for your next trip, and you'll be strangled by the rules.]