In ancient times, the mountain and sea boundary has been opened several times, no one can say clearly.

However, after mankind entered the starry age, the mountain and sea world has appeared twice ~

for the first time, a thousand years ago.

At that time, the whole human union was shocked when we saw the sudden appearance of this huge and mysterious place. Countless forces and strong ones gathered like locusts.

However, it is surprising that not all people can enter the site.

Those who can enter it are from the East.

Or to be more accurate, it is a person with ancient Chinese blood.

Faced with such a situation, the strong and the authorities in other member states are naturally not reconciled, so they have tried numerous means and methods ~

however, in the end, they are still unable to enter the country and have to turn around.

...

the second time, and the most recent one, was 500 years ago.

At that time, the scientific and technological civilization of the United States of mankind and various knowledge of the universe had been greatly improved, especially in the strength of the strong individuals.

To this end, the major forces once again swarmed in.

But it turned out to be the same as the first time.

The secret realm of mountains and seas still appears in the sky above China. In addition to the Oriental people with Chinese blood, other major forces still cannot enter it by all means.

And oddly enough, those who came at that time with the blood of China were unable to enter.

Later, according to people's conjecture, the strong people of the earth's rank began to integrate the laws of heaven, earth and universe into the body, thus they were excluded by the law of the secret realm of mountains and seas, so they were unable to enter.

...

as a matter of fact, the strong people who have cultivated above the earth level can hardly enter any secret realm. Today, in the Xinghe era, a consensus has been reached among those who practice the ancient martial arts system.

And for those of every rank, they can't enter the boundary of mountains and seas.

Because within the boundary of mountains and seas, it has its own laws of heaven and earth, which is extremely heavy.

Ordinary people of ordinary rank have not been tempered by Zhenyuan, so they can't bear the pressure. They have only one way to die.

Even the level 10 master level martial arts can not be spared.

...

in fact, every time the secret realm of mountain and sea is opened, although only people of ancient oriental blood enter it, at least millions of people have stepped into it.

From huangjiewu to xuanjie, the two spirits of heaven and earth are strong, the half step is strong, and there are also some Oriental blood forces, such as abdika and Tian * emperor.

And less than one percent of the people who have entered it can finally return safely.

Or to be more precise, people who step into the world of mountains and seas are doomed to death.

According to the records of ancient books and people who have returned from it,

in the mountain and sea world, there are all kinds of strange things, such as black hills, evil waters, wild mountains and lakes, endless danger; fierce animals and birds, beasts and monsters, who choose people to eat; there are headless gods, ghosts and monsters, tribes and Aborigines; and ancient great witches and beasts, powerful and incomparable, devouring the heaven and earth...

however, even if the mountain and sea boundary is like this This is dangerous, but those who want to go in are like the fine sand of Ganges River.

The reason is also very simple, because the chance and legend in it are so attractive...

and