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

Cui Heng's eyes narrowed slightly when he heard this. He stared at Jing Xiangzhen and said in a low voice, "Is that the ancient sect where the Ancestral Master of your Evergreen Heights came from?"

"That's right." Jing Xiangzhen nodded repeatedly and said, "A hundred years ago, the Holy Son of the Longevity Divine Mountain traveled here. I once tracked his traces for a period of time and saw the power of this Treasure."

At this point, he swallowed and said in fear, "This is a Heavenly God Treasure Armament. It's even sturdier than a Heavenly God's body. It was actually beaten to such a state. No wonder the Holy Son died."

"The Holy Son of the Longevity Divine Mountain was killed in the Green Stone Wasteland 50 years ago, right?" Cui Heng placed the pottery bowl on the table and said indifferently, "Do you know why he was killed?"

Whoever Dares to Stop You Will Be Killed Without Mercy