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

Heavenly Void World, Jiangdong County.

The Wang Family had been here for a very long time.

Ever since the Nine Immortal Sects enlightened all living beings in the wilderness 5,000 years ago, the Wang Family had taken root here.

The current Wang Family of Jiangdong was already one of the Nine Preeminent Families.

They watched the rise and fall of countries and the change of dynasties.

However, in the past hundred years, the Wang Family in Jiangdong had not had a good time.

In the disaster 300 years ago, the Wang Family of Langya in the Lower World was almost wiped out. Their reputation plummeted, causing the Wang Family of Jiangdong to lose their source of Heaven Dew Crystals.

To the main sect of the Heavenly Void World, if the reputation of the Lower World branch was too low, even if they descended, they would not be able to collect many Heaven Dew Crystals. They might even suffer a loss.

Immortals Arriving One After Another