All realms have enabled me to achieve the Great Dao.

Let's test the waters with Tianlong World first.

Zhou Yongcheng left the Tianlong World and appeared above the Boundary Sea.

The Boundary Sea, though called a sea, is actually a layer between worlds, a void, a chaos. Ordinary people dare not stay in such a place because there is no time or space. Once you enter, it is very difficult to leave unless you have a very high level of cultivation, like a world lord. They have their world as a guide and can travel freely in the Boundary Sea. With the guide, they can also return to their original world.

There are many wild worlds in the Boundary Sea. Zhou Yongcheng looked around and saw all kinds of worlds, none of which were familiar to him.

Zhou Yongcheng had some guesses about the worlds his cheat system transported him to. He believed that the world his cheat system allowed him to travel to might be one world in a universe, rather than several worlds in one universe.

A light source in an unknown space; each light source represents a universe.

Just like the universe in which the Tianlong world is located, the Tianlong world is just a small world within this universe.

The same was true of the other worlds he traversed.

After all, if he cultivates to a higher level, he can travel freely in that universe.

But to travel freely in the universe, one needs a certain level of strength.

Just like Hongjun in the primordial universe, even if his cultivation reached the Heavenly Dao Realm, he could not transcend the primordial universe. To transcend the primordial universe, one must cultivate to the point of surpassing the Heavenly Dao Realm in order to transcend and go to a higher level of the universe.

Looking at the many worlds in the Boundary Sea, some large and some small, and even higher-level worlds above the Boundary Sea, people in the Boundary Sea worlds, if they cultivate to a certain level, will break the world's limitations, thereby attracting the guidance of the upper realms and entering higher-level worlds to cultivate.

In the world of Tianlong, spiritual energy is scarce. It's already quite an achievement to break through to the Grandmaster realm, let alone reach a higher realm. Therefore, it's simply impossible to break through the void and ascend to the upper realm.

Zhou Yongcheng looked at the Boundary Sea, found several worlds that had just returned to chaos, and injected the world's origin into the origin space of the Heavenly Dragon World, allowing the world's will to digest the origin, advance the world, and thus generate spiritual energy within the world.

Zhou Yongcheng stood quietly in the Boundary Sea, watching to see if the world's advancement would attract the covetousness of other powerful beings in the Boundary Sea.

As the will of the Heavenly Dragon World digested the origin, the Heavenly Dragon World did indeed manifest itself in the Boundary Sea, and quite clearly at that. The world barrier even emitted a halo, as if afraid that others would not know that this world was advancing.

Not long after, Zhou Yongcheng saw movement in the Boundary Sea. A mysterious energy appeared in one of the worlds, searching for the Heavenly Dragon World.

After a while, the powerful beings of that world located the Tianlong World, and a strong force rushed out from that world, wanting to establish contact with the Tianlong World.

Zhou Yongcheng had already figured it out: this was establishing a spatial passage. Once the passage was established, people from that world could enter the Tianlong world.

With a wave of his hand, Zhou Yongcheng silenced the world of Tianlong instantly.

The powerful beings of that world suddenly lost their target, and the spatial passage failed to be established.

Zhou Yongcheng looked at the unknown world that was about to invade the Tianlong world.

In an unknown world, an old man exuded unparalleled majesty, but at this moment he was somewhat exasperated.

"What happened? We finally sensed traces of other worlds, and the location was clearly set. The passage was about to be established, so why did it fail?"

"Lord of the Realm, has a powerful figure from another world made a move?"

"It's not impossible. I'll sense it carefully again to see if I can detect any traces of other worlds. For tens of thousands of years, if I can't integrate with a new world, my cultivation level won't improve."

"Lord of the Realm, why don't you go to the Upper Realm?"

"The Upper Realm? You think the Upper Realm is so great? Going to the Upper Realm means becoming cannon fodder, mining, and serving as a slave to other powerful beings. Although your cultivation won't advance in the Lower Realm, I am the ruler of this realm and can do whatever I want. As long as I can find traces of other worlds and integrate them, my cultivation will still improve. Once you go to the Upper Realm, don't even think about coming back. Going up is easy, but coming down is hard."

The subordinate finally understood why the Realm Lord didn't go to the Upper Realm. It turned out that the Upper Realm wasn't as wonderful as imagined. However, he was a little curious as to how the Realm Lord knew this.

Because the world's ruler was in the upper realm in his previous life, but he didn't do well and was killed by other powerful beings. His primordial spirit was unintentionally reborn in this world. Otherwise, how could the native inhabitants of this world cultivate to the point of controlling a world?

Zhou Yongcheng withdrew his gaze, a look of realization dawning on him. Merging worlds? How come he hadn't thought of that? Should he merge the surrounding smaller worlds into the Tianlong world?

After thinking it over, Zhou Yongcheng decided against it and returned to the world of The Deer and the Cauldron, giving the world's will the origin of several worlds, allowing the world of The Deer and the Cauldron to evolve.

Zhou Yongcheng watched as the world of The Deer and the Cauldron finished digesting the world's origin, and the world's origin disappeared without being invaded.

The same was true in the world of Condor Heroes, which taught Zhou Yongcheng some things.

To invade other worlds, one must know the exact location of that world and have the ability to establish a passage between the two worlds.

Only a world lord who controls a world or a universe lord who controls a universe can do this.

Seeing the structure of these micro and meso-micro universes, Zhou Yongcheng wondered if the universe itself was similar.

Just as Pangu created the primordial universe from chaos, are there countless chaos within chaos, each of which can create its own universe? In this way, countless universes would form the cosmic sea. You should know that there are so many light sources in his mysterious space, and each light source is a world, and also a universe.

Is there an even more powerful world above countless universes? Otherwise, where did those powerful beings who transcended the Heavenly Dao Realm go?

Zhou Yongcheng shook his head. He was only at the peak of the Hunyuan Daluo Golden Immortal realm, not even at the Hunyuan Taiji realm yet. Why was he worrying about this? Maybe there was a world beyond the primordial world in the mysterious space.

Back in the world of Tianlong, the concentration of spiritual energy had increased. When the concentration of spiritual energy reached a certain level, it would stop increasing. Zhou Yongcheng glanced at Fang Chen, wanting to see how he was doing.

Fang Chen awoke from his slumber, and the surrounding environment told him that he was not dreaming; it felt too real.

Fang Chen is an employee of an electronics factory. He worked the night shift last night and went back to his dormitory to sleep after breakfast this morning. When he woke up, the environment had changed, and he was lying casually on a chair.

A soldier rushed in and saluted Fang Chen.

"My lord, the Liao army is attacking."

Fang Chen was still confused. He looked at the soldier in ancient military uniform in front of him with a bewildered expression.

Just then, a lot of information flooded his mind.

He transmigrated into the world of the TV series "Demi-Gods and Semi-Devils." He was a general in the Song Dynasty army, stationed in a border city, with the Liao Dynasty just outside the city.

What makes him happiest is that he has a system, and with a system comes a mission, the mission of which is to enable people to live a happy and healthy life.