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

Ever since the descent of the Upper World Angel, Wang Donglin, and the entire Langya Wang Clan fell into an extremely tense state.

From the people in the Deity Realm like Wang Huaiyi to ordinary servants, they were all very careful.

They were afraid of offending Wang Donglin, an Upper World Angel.

After all, to the Wang Family of Langya in the Lower World, any Upper World Angel was an unattainable existence that could take their lives at any time.

Therefore, the Langya Wang Clan was doing their best to cater to Wang Donglin and not let him be dissatisfied at all.

Even if Wang Donglin took a fancy to a certain man's wife or concubine, their husbands would personally send them to Wang Donglin's bedroom that night.

Although the Wang Family of Langya in the Lower World and the Wang Family in the Upper World came from the same origin, they had long been separated for more than 3,000 years.

Lifting a Mansion into the Sky, Ultimately Unable To Escape