A quarter of an hour later, in the Doomsday Train.

"Ding, hello passengers, welcome to the Doomsday Train, this train is going to the Demon Nightmare Domain, please confirm your destination to prevent the wrong ride."

"This train is expected to run for three hours, and will finally stop at the center of the Ten Thousand Worlds in the Demon Nightmare Domain, if you are leaving the Doomsday Space for the first time, please read the instructions of the main material plane in front of your seat."

Su Yun was sitting in his seat at the moment, and there were not many people on this train, and the position was very spacious.

He had already read the book of "Instructions for the Main Material Plane" in front of his seat, and Xiao Zi, who was sitting next to him, had also taken a copy and was looking at it with relish.

Originally, Su Yun didn't plan to release Xiao Zi, but Xiao Zi said that she had a strange disease called "If you don't come outside to see it, you will die", so Su Yun could only release her.

After the third chapter of the covenant, he promised that she would not be taken into the machine spirit space unless he had to.

Nightmare Domain.

A well-known realm in the vast sea of time and space.

The Demon Nightmare Domain is a realm that exists in the form of continental blocks, and the entire Demon Nightmare Domain is divided into more than 5,000 continents, floating in the void, and among these continents, only more than 300 are relatively large in area and rich in resources, so most of the human beings in the Demon Nightmare Domain live on these continents.

The Demon Domain has been dominated by the Demon Clan since a very early age, and with the rich Demon Crystal Resources of the Demon Domain and the unique Demon Source Magnetic Field, the Demon Clan has developed their own splendid alchemy culture in this realm.

In the alchemy world of the entire space-time sea, the demon clan occupies a place, and when it comes to the alchemy of magic weapons in the space-time sea, the first thing that comes to mind must be the demon clan clan.

With their excellent alchemy skills and the steady generation of fourth-order powerhouses in the clan, the Demon Nightmare Clan occupies a place among the eight great magical families of the Time and Space Sea.

The Eight Magical Families of the Space-Time Sea are the eight most influential families in the Space-Time Sea that are jointly assessed by all the realms of the Magic Law of the Space-Time Sea.

Every once in a certain period of time, it will be re-evaluated, and the ethnic groups that have been selected as the eight great families have the right to formulate the order of a certain aspect of magical time and space, in short, the right to formulate industry standards and establish industry regulations.

For example, the Demon Clan controls the right to set the order of magic weapon trading, and almost all of the magic weapon trading in the Space-Time Sea is monopolized by the Demon Clan.

They also stipulate that certain production specifications of magic weapons must be in accordance with their standards, otherwise they will be substandard products.

At present, the eight major magical families are: Sanctuary, Song of Solomon, Nightmare, Abyss, Longkai, Bright Sun, Feather Mang, and Flowing Snow.

There are a few of them that Su Yun has an impression.

For example, the Song of Solomon.

Su Yun's previous Lan Ruo Yage in the Mountain Wolf Team was a member of the Song of Songs family, and she had also wooed Su Yun, and it was also the first time she let Su Yun know about the situation of the space-time sea and the major forces.

Then there is the Flare Family, which is actually the Flare Magic Empire, one of the three main material planes behind the Doomsday Space.

The other families are also big forces in the Space-Time Sea.

Back to the Nightmare, the book gives a detailed introduction to the Nightmare.

The Elders Round Table is also the highest authority of the Devil Clan, and the legislative, judicial, and administrative affairs within the clan are all handled by the twelve elders.

The Demon Nightmare Clan is also the backer of the Demon Space in many dimensional spaces, just like the Solar Family is to the Doomsday Space, and the relationship between the Demon Family and the Demon Space is the same.

They have their own set of rules for contractors, and those who enter the territory can be welcomed as long as they strictly abide by the rules they have set, but if they violate their rules, the punishment is extremely severe, and even the will of space cannot be saved.

This set of regulations is different for contractors of different ranks, and for people like fourth-order contractors, who are rushing to win over the entire space-time sea, of course, they can't be treated with the etiquette of treating first-order contractors.

This is the so-called courtesy of the common people, and punishment of the doctor.

Su Yun looked through the precautions.

The space prepares such a document for them here, mainly to prevent the contractor who goes out of his space from committing crimes on other people's territory and causing unnecessary losses, and the space document points out most of the main matters to pay attention to, and there is a thick book of the rules of the contractor of the Demon Nightmare Domain next to it.

Su Yun just looked at the precautions after the selection of the doomsday space, and did not touch the book, but Xiao Zi held the thick book of regulations and buried her head in it, looking at it with great pleasure.

The three hours passed quickly, Su Yun took a nap on the train, and the car arrived at the station.

Outside is already a city full of lights.

This is a place called the Contract Continent, and it is a place where the Demon Domain is dedicated to housing the Contractor and the people related to the Contractor.

The contractors who come here have different purposes.

Some of them are from the Nightmare Domain, and they come back to visit relatives or rest, and these people's roots are in the Nightmare Domain, and they are generally backed by some elder forces in the Nightmare Domain.

Some people have heard that the magic alchemy technology of the Demon Nightmare Domain is unique, and those who come here to ask for magic weapons, as long as they give enough reward, the Demon Nightmare family can help the contractor specialize in refining weapons that can be used in the plot world, but the price is very high.

There are also contractors of the demon space. As the force behind the Demon Space, the Demon Space Domain can be regarded as the back garden of the Demon Space Contractor, and the Demon Space Contractor will definitely choose to settle in the Demon Space Domain when he goes out to run errands for a long time.

More people are relatives and friends of the contractor in the main material plane, especially the contractor of the demon space.

When reaching the second to third order, the contractor can obtain a fief in the contract continent of the Demon Nightmare Domain, which can accommodate the contractor's relatives and friends in the main material plane and help the contractor solve their worries.

These contractors may die in the story world, and the Demon Clan will confiscate the fiefs of the dead contractors, but these people who have lost their fiefs will still settle in the Demon Domain, multiply from generation to generation, and become the main population composition of the Demon Domain Contract Continent.

The last category is like Su Yun who came to the Demon Nightmare Domain with a mission.

As a last wish mission, Dolly had already noted the detailed information in the mission before she died, and Su Yun clicked on the details of the mission and saw a guide left by Dolly, which roughly meant to guide him to find her brother.

In addition to this, Dolly also noted some notes.

The first is to clarify her identity.

Dolly was a killer of the Demon Nightmare Family Corps during his lifetime, and his strength was probably at the level of the second order and higher, and later died in the line of duty.

Since she became a contractor of the Demon Space after her death, she was able to directly query her information in the Demon Domain, and was able to find out her brother's whereabouts.

The Doomsday Train slowly stopped at the Ten Thousand Worlds Hub Railway Station in the Contract Continent.

As an interboundary train, the Doomsday Train went through a twenty-minute process of adapting to the rules after entering the station, before slowly opening the door, and then, a cold wind from the pavement blew into the train.

Although the name of the Ten Thousand Worlds Hub Railway Station bears the word "Central", it is not actually located in the center of the Contract Continent, but in a marginal area of the Contract Continent.

The reason why the central railway station was chosen in this area was mainly because this area was the weakest place in the entire Demon Domain law.

Anything from other realms that wants to enter the Nightmare Domain must be adapted to the laws of the Nightmare Domain.

As a very simple example, in universe A, pi is 3.14159, but in universe B, pi becomes 8, so in order for something in universe A to enter universe B, it needs to modify some of the law parameters.

This process of modifying the parameters of the law is called law adaptation, and general law adaptation can only be done by civilizations above the fourth order, or the strength of the fourth order has reached the fourth order and has already touched the law of the fourth order.

Only these two have the ability to cross borders, and other civilizations or individuals can only be confined to one realm.

According to the existing law adaptation scheme, even if it is a fourth-order powerhouse, no matter how strong the original strength is, after experiencing the law adaptation, the strength will inevitably be reduced to the peak of the third order.

And the power of the dimensional space lies in the fact that the contractors it cultivates can adapt to the laws of all realms, and they can shuttle through all realms without the adaptation of laws, and only the fourth-order powerhouses in the dimensional space can get out of all worlds.

It is precisely for this reason that most of the big forces are trying their best to win over the fourth-order contractors who have come out of the dimensional space.

The moment Su Yun stepped out of the doomsday train, in a remote corner of the Demon Nightmare Domain Contract Continent, in a noisy gambling house, a thin man who was rubbing his head in mahjong suddenly woke up from his sluggish state.

He raised his head, hit a spirit, then glanced in the direction of the central train station, and then immediately pushed away the mahjong in his hand and stood up.

"Skinny Martin, what are you doing?"

A middle-aged fat woman who was gambling with him on the side screamed, "You can't pay the bill!" ”

The man named Skinny Martin took out a handful of what appeared to be paper money from his pocket and threw it on the table.

"Just when I lost!"

Thin Martin left such a sentence, and then the figure had already appeared at the door of the gambling hall.

"Cut, neurotic, I don't even want money." The fat woman cursed in her mouth, and reached out to grab the money with her fellow gamblers.

The figure of Skinny Martin circled the streets a few times, and then came to a street corner that no one cared about.

He leaned slightly in the shadows, and suddenly changed into a pitch-black suit, and the originally sparse and drooping beard on his face was instantly combed very smoothly, like a gentleman.

Then, he walked in the direction of the Ten Thousand Worlds Hub Railway Station.

In this regard, after Su Yun walked out of the train station, he casually found an open-air barbecue stall, ordered a few barbecues, and leaned on a comfortable recliner to start watching the brilliant colorful starry sky unique to the Contract Continent.