Sole Cloud Flying Cave

Cui Heng was transmigrated to another world and the system told him that the new world he was in was a high-grade Xianxia world.
It was a world where Celestial Kings soared the sky and terrifying monsters ruled the lands. The strong would destroy a planet if their mood was bad and Cui Heng trembled in fear when he learned of how scary the new world was.
Thankfully, the system had granted him the protection that last for 300 years. As long as he remained in the safety zone, he would not receive any damage.
With his safety secured, he began his cultivation training for the next 300 years.
Throughout the years as he trained, some people entered his safety zone by mistake.
There was a peasant who was once a monk and a beggar. Despite that, he still had the dream of bringing peace to the land and saving the lives of millions.
There was a noble who was once called the once-in-a-million-year genius. Yet, luck wasn't at his side and his talent fell and was laughed at by others for years.
There was a princess whose only wish was to find her older brother. She could've become a celestial but decided to remain in the human realm to wait for her brother's return.
There was a weak lady who was plagued with illness from birth but had the goal of adventuring and helping the poor and weak.
...
Cui Heng befriended these people and even gave them a few pointers before they left.
300 years later, when the protection period had ended, he had finally mastered the Golden Core. Even then, he was still reluctant to go to the outside world.
But when he did, he realized that the world was merely a world of Wuxia.

Realizing This Is A Wuxia World After Cultivating For 300 Years

The reason why they could enter the Beginner's Space was not because of a chance encounter, but because they carried the aura of power that came from the same source as the essence of the System. They were guided by an invisible force. And these auras of power essentially came from Cui Heng's predecessor.

Now that Cui Heng had retracted these auras, his Dao Integration realm cultivation had become even more perfected.

His gaze landed on Beginning who was hiding in the mysterious time period and he said indifferently, "It's time to end this."

In a boundless and formless place.

This was a mysterious area independent of time. It was the extreme emptiness after the end of time. It was also the origin of everything before the beginning of time, and also the foundation of the existence of everything.

After time ended, the world would enter this mysterious area and use this as the starting point to begin a new timeline.

Dao Integration Tribulation, Mahayana, Origin of the Dao of Immortals of Ancient Times (4)