Cao Xiaokai is walking between the roof of the building in Nangao City, and it is better to say that he is walking than to walk on the wall, but this is like walking for Cao Xiaokai.

18-year-old Cao Xiaokai is a snitch who steals for a living, because he was born in such an apocalyptic world, he was abandoned since he was a child, he lacked education and family background and could not survive in this world by knowledge and connections, but he was adopted by a kind uncle who made a living by stealing since he was a child, and he took over the mantle naturally.

Cao Xiaokai has been smart and clever since he was a child, he is proficient in everything he steals, he has never been caught, and he has actually become famous in this small city, taking some high-level orders from time to time, and taking something specific for some dignitaries, and their small circles jokingly call him "Little Thief".

Although Cao Xiaokai said that he steals for a living, he is not a thief, and he is of medium stature, 1.78 meters tall, 135 pounds in weight, flying between buildings, if he is a city hero, some people will believe it, but in order to survive in this last world, he can only use this unsightly means to feed himself and find his own place.

Today, Cao Xiaokai received a big order, if he gets this order, he can eat and drink for three or five years, thinking of this, Cao Xiaokai wanted to laugh while flying away.

This time, Cao Xiaokai wants to steal a twenty-centimeter-long short knife made of armor gold, which is said to have been developed by the world's top scientists, and the hardness and sharpness level have reached the world's top level, and can despise all cold weapons.

There are mysterious customers who offer a high price of 500,000 for this thing, but many people are blocked by the anti-theft measures of the institute, and dozens of waves of people who want to steal this dagger are not caught or fall into the trap of the agency, and few have successfully escaped, not to mention stealing it, and they folded it without even seeing what it looks like, so this dagger has become a blade of the end of the world by the underworld.

More than 100 years later, in 2188 of the Gregorian calendar, due to excessive exploitation, energy depletion, and exhaust emissions, the sky was polluted by a characteristic metal, and this special metal is armor.

Discovered in 2088, this is a highly malleable metal that can be added to increase its hardness, making bullets more penetrating, daggers sharper, and armor harder. However, this metal is not recyclable and refined, once it is synthesized with other metals, it is difficult to decompose it again for recycling, and synthetic metals are no longer malleable and can only be discarded, so this metal produces more and more metal waste.

The government disposes of various alloys synthesized with armor in a variety of ways, the largest of which is to divide them into detritus landfills, resulting in an increase in the amount of synthetic metals in the ground and in the air. The air quality is declining dramatically, drinking water and food are contaminated, and all kinds of animals and plants are constantly dying, disappearing, and slowly becoming extinct, including humans.

After about twenty minutes of flying between the buildings, Cao Xiaokai came to the outside of a rusty building, the dilapidated metal skin wrapped in a half-meter-thick cement wall, without a single window, there was a gate about two meters wide and three meters high, the gate was closed, only the two sides of the gate, and two faintly lit indicators on the upper edge.

It's the only recognition in the dark of night, and it looks inconspicuous in this ruined city. In this inconspicuous building, there is the most advanced armor research technology in the country and even the world, and many high-precision armor weapons are from here, which is probably the only reason why the city has not been destroyed by the war and is still populated.

For this building, many of Cao Xiaokai's peers will go around, one is that the scientific research institution is not of much value to ordinary thieves or they don't understand the value, and the other is that the copper wall is ironclad, there is only one gate, and the scientific research institute must also be tightly handled, monitoring, alarms and security personnel are everywhere, and it is difficult to fly out even if you go in.

But this is not too difficult for Cao Xiaokai, because no matter how tight the building is, there will be people, as long as there are people, there will be loopholes. I saw Cao Xiaokai take out a set of uniform-like clothes and a hotel-style lunch box from his backpack, Cao Xiaokai put on a uniform, a hat, a mask, sunglasses, took the lunch box, and rushed to the gate of the institute with eager steps. Seeing this scene, I believe no one doubts that this is a restaurant delivery staff.

Cao Xiaokai trotted to the gate of the research institute, and then looked around and didn't know how to get in, and then knocked on the door with a very impatient look, and there was a very muffled sound from the door, it seems that these two gates are quite thick, and it is difficult to open them by force.

Suddenly, a small green diode light lit up on the door, and at the same time, a voice came from inside, "May I ask who is outside, is there a permit?" Forehead... , takeaway? "Obviously, there is a camera in the place where you can't see it, and the people inside are really fooled when they see this dressed Cao Xiaokai.

"Yes, yes, I'm delivering food, it's really hard to find this place, it took a long time to find it, the food is almost cold, and Mr. Li doesn't have a full name, can you ask him to pick it up?" Cao Xiaokai casually made up a person in the tone of a delivery man, that impatient and marketable.

"Mr. Li? So how to find it, there are too many people to ask the phone, and besides, we have a canteen here, no one will order food, and the wrong delivery is right? The person inside said in a questioning tone, it seems that the security personnel are still not easy to be fooled.

"Oh... , well, maybe it's the wrong delivery," Cao Xiaokai said casually, "It's a pity that I have this good secret meat crab rice!" ”

"Wait, what are you talking about, crab rice? Since no one wants to stay here, I want it, I'll give you as much money, okay. You put the food on the ground and step back five meters, I will open the door and come out to get it" The security personnel of the cafeteria of the scientific research institute are secretly happy in their hearts, and they can improve the food today, and such a large research institute does not often change the meal list.

"Okay, okay, I'll put the rice here, step back five meters, this rice is 48, you are ready for money!" It seems that Cao Xiaokai often does this, this is completely a food delivery, no one can imagine how sharp the eyes under the hat are, and the anesthetic hidden weapon in the sleeve is ready, just waiting for the security personnel to come out of the door.

Tick tick! I saw that the door rang three times, and the gate slowly opened from the middle to the sides, and some dust fell on the door, which seemed to have not been opened for a while, and it also implied that no one could enter or exit during the high-tech scientific research project.

At this time, a tall figure walked out of the door, and I saw that this person was a big man of about 1.85 meters, with big shoulders and a round waist, very strong, and the security uniform on his body seemed to be about to be stretched out, obviously this was the largest uniform.

With a black beard on his face, a wide mouth and nose, a wide forehead and a rectangular face, he looks like a trained security officer, a standard security uniform with white on the top and black on the bottom, but the difference is that the security personnel who walked out at this time carried as many as five kinds of security equipment on the belt around their waists, not so much security equipment as weapons, batons, pepper water, handcuffs, daggers of about 18 centimeters, and a pistol behind the waist.

Seeing this, Cao Xiaokai took a deep breath, this is really a big job, you have to add money when you go back, although Cao Xiaokai thought so, but at the same time, Cao Xiaokai quickly raised his hand and shot a shot to the tall security personnel***, this is Cao Xiaokai's commonly used weapon, very small, like a tube tied to his arm, can fire an anesthetic needle, or pop out a dagger for melee combat, while punching out the anesthetic needle, Cao Xiaokai immediately got up and ran to the tall security officer.