After eating the insect meat, night finally fell.

Lu Ban came outside and saw that the sweeping robot was still cleaning diligently, clearing the ground covered with sand. On the exterior wall of the building, the spider-like robot was also carefully taking care of the wall to prevent it from showing signs of weathering.

The street lights seemed to be broken, and the spare bulbs were probably damaged. No one repaired them, leaving the road completely dark.

In the darkness, Lu Ban saw the stars shining in the wasteland. The dense stars were like the Milky Way on Earth. He tried hard to distinguish some constellations, but to no avail. This was a completely unfamiliar starry sky.

At this time, he saw the robots coming out from Building A3.

They seemed to have a special maintenance site and were heading this way.

Lu Ban was curious and followed.

The robots walked into the back door of the ecological park, one after another.

Lu Ban pretended to be a robot and walked into the door.

This is a spacious room. The robots came to stand next to the pillars that looked like charging stations, and then lost their agility and became completely man-made objects.

"It also has wireless charging, which is quite advanced."

Lu Ban studied the charging station and found that it was a wireless fast charger. As for the amount of electricity, it might all rely on solar energy.

There are also many robots here.

They just stood there, like soldiers guarding the frontier.

However, some robots are missing arms, some are missing legs, and some are even missing their heads. These may have been destroyed by sandstorms while they were working outside.

Even more, occupying the vast majority of the number in the room, are robots that are intact but whose charging stations next to them no longer light up.

Lu Ban used [True Vision] to check and found that these robots were simply out of power. If they could be recharged, they might still be able to move.

It seems that this future city should have been connected to a nearby power plant, but most of the electricity still relies on external supply, and solar energy can only last for a period of time.

Moreover, the solar panels on these buildings may have been damaged due to years of exposure to wind and sand, and not every one of them is functioning properly.

I believe that after a period of time, all the robots here will eventually lose energy and stop working.

"Everyone is asleep."

A voice suddenly sounded from behind Lu Ban, making him turn around.

The robot girl Lin was standing next to a robot that could never be turned on, looking at the robot.

"He used to be the best chef in the noodle shop. The beef ramen he made was very popular, and even the subsequent models could not surpass it. In the three years in Future City, he made a total of 490,997 bowls of noodles. The last customer who ate his noodles was a boy who lived in room A6-401. He always ordered spicy noodles. He said that the noodles tasted exactly like those in his hometown."

Lin took a few steps towards Lu Ban and looked at another robot beside her.

"This is a musician. He used to work as a childcare music educator. Later, he was sold here to continue playing. Every day at nine o'clock, he plays the piano in the square of the commercial street. Many residents gather around him. They say that playing can soothe the soul. I am a robot without a heart. I don't know what this feeling is, but I think they must be very happy when they hear the music."

"This is the doctor of Future City. During his tenure, the disease rate in Future City has dropped..."

"This is the gardener. He will trim all the grass and trees in Future City at 5 o'clock every morning..."

"He's in charge of maintenance. Every broken robot will be sent to him. During that period, the failure rate of Future City's robots was..."

She introduced these robots to Lu Ban, one by one, not only their origins and models, but also what they had done.

It was as if they were not cold robots, but living beings.

Looking at Lin's expression when she said these things, Lu Ban was not sure whether it could be called nostalgia.

Lu Ban suddenly remembered what Feng Yu mentioned before, that in some alien lands, humans abandoned their flesh and blood and chose to ascend with machines. If this was not a wasteland but another alien land, Lu Ban would probably suspect whether this place was polluted, causing all the people in the city to become robots.

“Although they are now in a deep sleep due to lack of power, as long as they return to normal, this place will become the same as before.”

Lin said with certainty.

"You are already here, the others will surely be back soon."

She looked at Lu Ban and smiled.

“…”

Lu Ban didn't know whether she should tell the robot that the person she had been waiting for had been gone for hundreds of years, the world had been destroyed, and she could never go back to the past.

In the days when civilization was destroyed and humans passed away, these robots worked according to their original settings, day after day, year after year, until their batteries ran out.

"At the end of every year, all the robots will gather together and light a huge bonfire on the commercial street to celebrate for the residents. That is the happiest day of the year. According to my schedule, it will be the end of the year in two days, and we can light a bonfire together again."

Lin said again.

"Um."

Lu Ban nodded.

"Actually, I lied to you before. You are not the 6,666th person to visit here. To be exact, you are the 6,630th. However, since no one else has come for a long time, I judged that Future City and the Ecological Park are no longer welcome. Therefore, as a rare guest, I lied to you without authorization."

Lin bowed to Lu Ban with some apology.

"It's okay, you did a great job, it's not your fault that no one comes here."

Lu Ban replied.

"I have tried to send a message to the service provider, but have not received a response. Due to the settings, I cannot leave here. I would like to ask you, guest, whether the service provider of Future City has stopped providing services, or for what reason has the communication failed?"

The robot girl tilted her head and asked again.

Her voice is very clear, like the stream flowing in the ecological park.

"Maybe. We haven't had any contact with them."

Lu Ban said in a deep voice, and after a pause, he asked.

"If, I mean if, I tell you that the world has been destroyed, and everyone you once knew is dead, they have been gone for hundreds of years, what would you think?"

Hearing Lu Ban's words, Lin tilted her head, looking as if she didn't understand.

"I'm sorry, this situation is not in my response manual. I may need to upgrade my firmware, but unfortunately, I can't contact the service provider to upgrade it."

As she spoke, Lin smiled again.

"Besides, guest, aren't you here with your companions?"

Lu Ban was silent.

"Guest, the special performance is about to begin. If you are interested, please go to the Ecological Park to watch it."

Lin invited again.