What's wrong with being cold-blooded in the end times? Anyone who messes with my wife will die.

The world inside the black wall made Ai Xin's eyes widen. His parents and other psychics in the team were also shocked and speechless.

There were countless pitch-black corridors in the sky, connecting different buildings and cutting the sky into different small areas. The tall buildings here were well protected and many windows were open. Ai Xin saw a man standing by the window, sipping from a cup in his hand.

In front of them, the ground was also filled with black substance, and a sweet smell was floating in the air. Ai Xin saw someone sitting on the stairs smoking, and someone came over and took out a green spirit crystal covered with spikes to exchange for cigarettes, but the latter shook his head to refuse.

There are also embossed words on the wall between the two shops - "Material exchange entrance, 200 meters forward."

Ai Xin silently accompanied his mother and followed his father forward. He turned his head and looked at the archway they had just passed, with a question.

"If we come in and never go out again, will we be caught?" he said.

"Yes." A young woman in front of them spoke up, looking Ai Xin up and down, "If you don't get out on time, you will stay on the wall forever."

When Ai Xin thought of the heads embedded in the black wall he had just seen, he shuddered all over and felt a little fear in his heart.

"New here, right? Don't worry. There are three prohibitions in Alien Alliance City. Anyone who violates them will be sent to the wall." The woman said lazily, "Many people have violated the rules in recent years. They don't even have a chance to defend themselves. If they are detected, they are doomed."

"What are the three prohibition principles?" the man asked, "Who is the mayor of this Yimeng City?"

They had already arrived at the place for exchanging materials, which seemed to be a separate house made of black matter, with two doors, one for entry and one for exit. Next to the door stood a guard in armor also made of the black matter, holding a spear in his hand.

"You know that pornography is prohibited, right? Whether it's sex trade or doing bad things with evil intentions, it's not allowed." The woman said, "Robbery and murder are also prohibited in Yimeng City."

"What about outside the city?" Ai Xin asked her.

"Outside the city? It depends on the situation. It's fine as long as it doesn't get out of hand. Normally, no one would cause trouble near the city. This black wall can kill them instantly."

"How can one enter Alien Alliance City? I mean, what qualifications do I need to live there?" the man asked.

The woman took out a piece of chocolate from her pocket and said while biting it, "Residence qualification? If your level is high enough, you have enough spirit crystals, and you are strong enough, you can enter the outer city. If you have connections, then you can enter the inner city. It's that simple."

"How many spirit crystals are enough?"

"Two hundred purple spirit crystals, or ten red spirit crystals."

"so much?"

"It's not easy to get in, brother."

As they were chatting, they came to the two doors at the entrance to the material exchange, but angry shouts were heard from inside the door, and the guards next to the door instantly crossed their spears across the door.

"Last week, wasn't it thirty-two white crystals for ten bottles of mineral water? Now you tell me fifty-four? Are you fucking robbing me?!"

Listening to the roar inside, the woman's face changed slightly, rubbing her face and muttering: "Spirit crystals have depreciated again."

Not only her, but other psychics who heard the noise outside were not surprised. They just complained casually and no one showed anger on their face.

The man who was yelling inside suddenly fell silent, and Ai Xin was shocked, thinking that the man was dead. A moment later, a tall man walked out of the exit door, holding a black bag in his hand. He glanced at the crowd with his dark eyes and left angrily.

"You have some spirit crystals, right? You need to use them to exchange for supplies." The woman broke off a small piece of chocolate and threw it to Ai Xin, "Here, this is a good thing."

Ai Xin has never eaten chocolate since he could remember. In the summer, the chocolates melted in the sun. On rainy days, the chocolates were soaked in flood water. In the winter, they became hard again. This cycle repeated over and over again, and they have long been inedible.

"Mom, you eat." Ai Xin handed the chocolate to his mother, who shook her head and smiled softly and tiredly: "You eat it yourself, Ai Feng, you take all the spirit crystals."

The man nodded and led Ai Xin into the material exchange office. Others also went in one after another. The black guard kept his eyes on the last person who entered the exchange office, and then placed his spear across the entrance again.

The dark room was empty. Ai Feng only saw a dark shadow sitting at the table. The shadow looked a bit like the supernatural power released by his stepdaughter.

Ai Feng cleared his throat: "Um - we want to exchange mineral water, compressed biscuits, and toilet paper."

The black shadow made no sound, and suddenly a light screen appeared on the dark wall, displaying the exchange prices of various materials.

—Lingjing Exchange Rate Table—

1 red crystal = 20 purple crystals

1 purple crystal = 32 blue crystal

1 blue crystal = 40 green crystals

1 green crystal = 54 white crystal

Exchange instructions: It is forbidden to collect spiritual crystals from people with special abilities. If you have special needs, you must contact Rose Coleman, the person in charge of the South District of the Outer City.

Ai Feng took out a pile of crystals from the storage space where spirit crystals were placed. If they were all put on the table, they could form a small mountain.

They went all the way south and collected all the spirit crystals. Although there were no red-level spirit crystals among them, there were some purple-level spirit crystals, and there were countless blue, green and white spirit crystals.

"I would like to ask, will the exchange rate keep changing?" Ai Feng said.

The shadow nodded.

Then they can’t exchange all the low-level spirit crystals for high-level spirit crystals, Ai Feng thought, if they want to survive here, they have to be thrifty.

Ten bottles of mineral water are fifty-four white crystals, which is one green crystal. This week, the spiritual crystals are depreciating, so we can't waste too much. Ai Feng searched the price list of items. In addition to daily food and necessities, there are also tents, flashlights, lipsticks, skin care products, and even rubber ducks and bath balls.

"Dad, I want to eat apples." Ai Xin looked at the fruit column on the price list and almost popped his eyes out. They could actually eat fruit!

"Two green crystals for ten apples." Ai Feng looked back at his companions, "Do you want to exchange any food? Let's get through this week first, how about that?"

A young boy looked at the price list with a look of longing: "I want to drink Coke."

"Aifeng, let's buy the necessities first. If we can't enter Alien Alliance City now, we can stay outside and think about how to get in." Another psychic said, "Shafu is not here now. If she is unwilling to lead us in, we can only stay outside."

Ai Feng nodded.

Ai Xin couldn't help but speak up: "But can't we just say it directly? We are here to look for someone."

He said to the black shadow: "We know someone in this base. Can we meet her? As long as she sees us, she will let us in!"

"Ai Xin, don't be rude." Ai Feng put his hand on his shoulder and said in a deep voice, "Let's exchange supplies first."

Although the black shadow had a face but no facial features, they had an illusion - the black shadow seemed to be sizing them up, with its head slightly turning to look at the person behind it.

Ai Feng placed a handful of green crystals on the table: "First, one hundred bottles of mineral water."

The black shadow nodded, and in front of them, the long black table swallowed up the green crystal. Then, a pyramid of mineral water appeared out of thin air.

The people behind Ai Feng exclaimed in amazement.