The human world is the name given by human beings to the place where they have lived since ancient times, also known as the 'human world', which is the place of origin of human beings, and the ancient people gave it a nice name———— Shenzhou.

Most human beings will never leave Shenzhou in their lifetime, except for a very few existences, that is, Qin Xuan's current professional demon painters, it is possible to go to those unknown areas to explore and discover, and these places are the world of mountains and seas.

If the known Shenzhou is compared to a small island, then outside this island, there is still a vast sea, and there are countless world groups like Shenzhou.

In the same way, adding together countless worlds of mountains and seas, including China, the ancients called such a concept of the world 'the great world of mountains and seas'...

So some people are about to ask, is there a civilization like human beings in this world of mountains and seas?

The answer is yes, as early as a long, long time ago, as early as the time of the ancients, the existence of alien races has been determined, and the ancients also called these civilizations that are different from human beings and themselves 'Shanhai tribe'.

The Shanhai clan lives in the world outside of Shenzhou, they have their own territory, and there are many of them, when the demon painter profession does not exist, the power of the Shanhai clan is far beyond the imagination of humans, compared with the Shanhai clan, human beings are just ants in a corner of peace, insignificant.

But in fact, the Shanhai Clan is not as powerful as humans think.

In the great world of mountains and seas, there are endless resources, and rare treasures are inexhaustible, but unfortunately, these do not all belong to the mountains and seas, or in other words, only a very small part belongs to them.

Because the real master of the mountain and sea world is not the mountain and sea clan, nor the human race, but the fierce beast.

More than three million years ago, due to the drastic changes in Shenzhou, the ancient human race was declining day by day, and in order to survive, they were determined to leave Shenzhou and go to the end of the world of mountains and seas to find a new home.

However, the world of mountains and seas is full of crises, and even ancient people have no confidence to be able to retreat with their whole body.

It is also for this reason that the ancient people created their weapons, fierce beasts, and used the giant god Nuwa to help the ancient people to reproduce the human beings as rations and feed the fierce beasts, so as to quickly increase the number of fierce beasts.

In this way, hundreds of thousands of years passed, and finally, the ancients felt that they had accumulated enough strength.

As a result, the ancients were divided into five branches, one of which remained in the world, that is, the former Shenzhou, to wait for hope, and the other four branches, respectively, entered the world of mountains and seas in four directions, and thus opened up four, a new channel, and its end point is the four worlds of heaven and earth, mountains and seas in the myths and legends of the demon painter!

It's just that the ancients obviously didn't expect the horror of this mountain and sea beast.

The ancients thought that they had created fierce beasts and could control them, and this powerful force, like weapons and weapons, obediently listened to their masters.

But the ancients were wrong, they completely underestimated the power of the beast.

In the process of opening up new paths in ancient times, a large number of fierce beasts fell into the mountains and seas that formed these four paths, and from this, they spread to the entire mountains and seas like a virus.

Theoretically, the beasts are monsters with no intelligence at all, they eat people, they eat the mountains and seas, they eat the mountains and seas, they eat different kinds of beasts, and even some, they will eat their own parents and children.

In the period of ancient human civilization, the Shanhai tribe was also extremely prosperous, such as the Snow Girl Tribe, the race of Hanji, the Tapir Girl Race, and many Shanhai Tribes, who settled in their hometowns for generations, and did not invade each other with the ancient people.

However, due to the appearance of fierce beasts, these brainless invaders frantically poured into the mountain and sea worlds that were originally occupied by the mountain and sea clans, and as a result, 2 million years ago, a battle of mountains and seas that swept countless time and space, planes and dimensions broke out.

In this war, from the initial Shanhai Clan's absolute advantage, little by little, because of the terrifying breeding ability of the fierce beast, as well as many other advantages, the Shanhai Clan had to abandon the original world, and instead retreated in the direction of the Shenzhou World Group. Fierce beasts, not only the enemy of the Shanhai clan, but also the natural enemy of human beings, in order to fight against the frenzy formed by countless fierce beasts, the humans of the old era and the Shanhai clan allied with the Shanhai clan to resist them, and let a large number of Shanhai clans, the world they live in, into the system of the Shenzhou world.

And once it enters the world of Shenzhou, then if the beast wants to break into Shenzhou, there are only four ways to go.

These four roads were once opened up by the ancients with great wisdom, four sea gap mountains...

At the same time, in the human world, that is, the world of Shenzhou, there are four entrances and exits, that is to say, the only way for fierce beasts to attack humans is to enter the sea gap mountain passage from the mountains and seas world, and then break into the human world from the sea gap mountain passage.

Due to such restrictions, human beings and the Shanhai clan only need to build four fortresses at these four entrances to defend themselves here, and to keep them out of the beast country, so that they can protect the countless worlds in Shenzhou and live forever.

And fortunately, these four fortresses are very close to each other, so in ancient times, long before the Great Qin Empire, there was already a special profession that specialized in building world-class fortresses here.

This group of people is one of the officials of the Ninety-Nine Mountains and Seas, Wu Jianglang...

"Whew~~~"

The side plug is bitter cold, and the side plug of the demon master is not only bitter cold.

"The weather is strangely cold. ”

While patrolling, a Wujiang Lang raised his hand and took a sip of hot air to his mouth.

The towering city walls, the endless border plugs, and all kinds of runes are engraved in almost every gap, and they exude special demonic power fluctuations, which are as gorgeous as flowers at a glance.

There were nine such walls, and only one gate connected to each other, and the endless barracks were next to each other in the middle of each of the two gates.

The barracks are arranged in a special pattern, around the streets, where Wu Jiang Lang lived, there are merchants who are not afraid of death, taking great risks to transport materials here, in this side, material enjoyment, is no problem at all, the best food, the most superior props and resources that can make them stronger, but, for these Wu Jiang Lang, life, is a very luxurious word.

Because they don't know if they will die tomorrow, as for enjoyment, don't make trouble, they have to fight with fierce beasts every day, and even most of the time, they are injured, and some of the seniors who can survive have put every minute and second into training, in order to become stronger, so that they can survive the next fierce beast attack.