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

Today was not the day of the court assembly. Moreover, because the sacrificial ceremony to welcome the Immortals and Gods of the Upper World had just been held yesterday, the courtiers had all received a blessing and were not in the palace.

The entire palace seemed a little empty.

However, Prime Minister Chu Yuanliang did not return home to rest.

After seeing that White Tiger Child's golden carriage had left the palace, he came to the palace of Emperor Wei Yi, and bowed respectfully. "I, Chu Yuanliang, request to see Your Majesty!"

"Prime Minister, why are you here? Come in." Wei Yi's slightly lazy voice came from inside, as if he had just woken up.

"Thank you, Your Majesty." Chu Yuanliang stood up and walked into the bedroom. After passing through the hall, he saw Wei Yi lying behind the screen and said respectfully, "Your Majesty, are you planning to kill that White Tiger Child?"

Those Who Humiliate Me Shall Die