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

According to Xu Feng'an and Liu Li Tao's description…

About 270 years ago, Heavenly King Hongwu had already killed almost all the Deity Realm powerhouses in the world. The various sects and families were either suppressed or directly destroyed.

The greatest obstacle had been swept away, and the people of the world also regarded Heavenly King Hongwu as the savior of the world.

The rest of the revolutionary armies were nothing compared to them. They were not worth mentioning at all. The Dayuan Dynasty was also on its last breath.

This was already the eve of victory. It was the moment before dawn.

But why was it that in the end, the revolutionary army was overthrown and the new dynasty was established by the son-in-law of the Langya Wang Clan?

Moreover, the current Great Jin had been established for 261 years.

May All Sects and Aristocratic Families Hate Me