Before the Northern Meditation Cultivation, the character that Li Ya had been following was an undoubted legend.

The Four Princes of the Underworld, as the heir born to the Emperor of the Underworld in the case of difficulty in maintaining the rule of the Underworld, he almost never enjoyed the glory and wealth in his childhood, and at the age of four, he was forced to live in exile with the fall of the Underworld, but when he began to cultivate, he rose rapidly with an astonishing attitude, and at the age of seventeen, he was able to be proud of the Underworld, and he integrated an army at the age of twenty, announcing the return of the royal family to the entire Underworld, and then it took eight years to reunite the Underworld, achieving the greatest feat in the history of the Underworld, and he did not directly ascend the throne, but took his father back who was still alive, and personally helped him to the throne after a long absence, for a while, the fame was far and wide.

He is the strongest man in the underworld, and Sharp Tooth is the most powerful and loyal general under him.

After stabilizing the four directions of the underworld, the four princes began to think about the future development of the underworld.

The reason why a rebellion broke out in the underworld was not that his father was incompetent, but that in the past few decades, the living environment of the underworld has deteriorated extremely, and the lack of resources is the biggest problem, even if they are royal families, they can't be extravagant. There are tens of millions of people in the underworld, and only half of them can maintain food and clothing.

The underworld is located at the boundary between life and death, and if you look up, you can see the souls floating in the dim heavenly river above, and the rumored reincarnation platform that can master the reincarnation of living beings is also on the other side of the Lethe River, which they can never cross, and has been worshiped by the people of the underworld for thousands of years. However, the people of the underworld who were born in this environment are different from the human races and demon races living on the continent, and the people do not need to reproduce to be born on their own, which is not strictly prohibited by the law at all. The resources are getting less and less, the children are still popping up in piles, and the reproduction speed is getting faster and faster with the deterioration of the environment.

He wants to open up new territories, a paradise for the people of the underworld.

On the one hand, his eyes were on the west, where there is an unknown realm, after some exploration by the advance army, it is suitable for their underworld to survive, so many people in the underworld settled in that unknown realm under the protection of the royal army, in addition to the panic at the beginning, the migration was also quite smooth, the four princes even set foot in that place in person, and persuaded the aboriginal ghost clan over there, they didn't need any space, and agreed that as long as the underworld people did not disturb their purity, and provided them with the ghost qi they needed every year, they could settle at will, and in this way, he really found a way out for the people of the underworld。

It's just that this is still not enough, the people of the underworld are still being born in a steady stream, and this new continent is still barren and cannot solve the problem at all.

The Four Princes knew that one of the fundamental problems was the rapid birth of the people of the underworld, but this problem was too complicated, even if they did it all

Unable to find the root cause, the four princes had to divert their attention and look upward.

The underworld has a beautiful legend since ancient times, on the heavenly river leading to reincarnation, there is a wonderful world, where there is everything the underworld people need, as long as a hero breaks the canopy, he can lead the underworld people to set foot in it, live and work in peace and contentment on the promised land.

Many people of the underworld are willing to believe in this legend, not only because it is their vision of a better life, but also because thousands of years ago, there was really an outsider who entered the underworld, in the legend, the outsider wandered in the underworld for more than three years, during which he found the emperor of the underworld, all kinds of nobles and many ordinary people, asked a lot of questions, and finally stepped on the heavenly river under the gaze of everyone and floated away, leaving several books written by his own hand, and among those books, the only remaining fragment has been in the library of the underworld, and the four princes have carefully read itAlthough many of them were difficult to read due to the fragmentation of the paper and the antiquity of the text, he remembered the name of the author and the world he had mentioned.

Wen Xingyao.

Zhongzhou Continent.

He wants to set foot in the Zhongzhou Continent, and he wants to lead the people of the underworld to truly survive there.

But first, he had to see the Zhongzhou Continent with his own eyes, if it wasn't a paradise, but a terrifying place like the underground hell, he would have to give up this plan.

Anyway, let's go up and have a look first.

So one day, under the reverent gaze of all the people in the underworld, the four princes jumped onto the heavenly river that they had been looking up to for generations.

He stretched out his hand and lightly divided, and the heavenly river that covered the sky above the underworld was truly divided into two sections. In the cracks of the Tianhe, the people saw the flying souls, the dotted white rays, the illusory mist behind the Tianhe, and the subtle but bright light where those souls came from.

At that moment, the entire underworld was boiling, and Li Ya, as the head of the ten fierce generals of the demon realm, led the nine generals and all the underworld soldiers after him to send the four princes to the sky.

The four princes stepped on the Tianhe, and with a light tap of their toes, they turned into a streamer and quickly disappeared from the sight of everyone in the underworld.

The people of the underworld are full of confidence in the Four Princes.

He is a legend in this life, I don't know how many miracles have been caused, looking at the history of the underworld, he is a well-deserved first person. Except for Wen Xingyao, who came down from above, only he was qualified to let Tianhe give way.

Everyone believes that one day in the future, the four princes will tear apart the heavenly river again and return to the underworld with light, so that the people of the underworld can be bathed in light and warmth.

And so on until now.

......

Stepping into the continent from the underworld is no less difficult than stepping onto the continent

The continent ascended to the top of the clouds, frankly speaking, the ascension of the four princes can be described as extremely successful, and it took almost no too much effort, and he even found a lot of handwriting left by Wen Xingyao in the dark sea behind the Tianhe, which should be guiding the first underworld people who dare to ascend to the right path.

That's what the fourth prince did, so he saw the light, and then, took the first step towards the Zhongzhou continent.

After taking that step, the dark energy that he belonged to the underworld was suppressed by the spiritual power that belonged to heaven and earth, even the demon spirit that he cultivated as a body could not resist, which made his body extremely painful all of a sudden, but in the pain, his heart was filled with irrepressible happiness.

This is the real spiritual power, as long as he can adapt to this spiritual power and transform all the dark energy in his body, his cultivation is enough to go to the next level.

This even shows that their dark energy and spiritual power are of the same origin, and they could have survived here!

The fourth prince looked around, although this was a place where a hundred ghosts walked at night, in the distance, he saw real hope.

The underworld is saved!

The fourth prince happily observed the surrounding environment, and then saw two people.

The two men were arguing, but they both looked extremely depressed, as if they had just suffered some major setback.

Their skin is yellowish, and it is very different from the underworld.

The fourth prince sighed in his heart and got up under heavy pressure.

And when he got up, the two men also spotted him and showed a "kind" smile.

And then, there is no then......

......

The people of the underworld didn't know that the Four Princes had unfortunately passed away just after their ascension, and until now, they had been looking forward to the return of the Four Princes, but as time went by, people's hearts became more and more panicked.

Isn't the fourth prince dead?

How could the Four Princes die?

Whatever the people thought about it, they all looked at one person in the underworld.

Among the underworld, there is only one person who has the ability to find the whereabouts of the four princes.

So one day, with the blessing of nine comrades, Li Ya successfully set foot on the Tianhe River, and followed Wen Xingyao's guidance to the Ten Thousand Ghost Caves of the Demon Domain. He also didn't believe that the Four Princes would die, but after going through many things, he met the Northern Meditation Cultivator in the human world, or the Fallen Yuan, and finally accepted this reality.

It didn't take long for him to accept the deal of the Northern Meditation Cultivation and become the head of the four great generals of the Northern Underworld Mansion, if nothing else, just for the continuation of the Demon Mystery of the Four Princes in the Northern Immortal Cultivation, and he believed that the Northern Meditation Cultivation would not be a person who rebelled.

He helped the Northern Meditation Cultivator survive the saddest years, and now it was the time for the Northern Meditation Cultivator to fulfill his promise.

Although the one responsible for fulfilling the promise should not be the Northern Meditation Cultivator.