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

It was as if boundless divine might had enveloped Cui Heng, as if the Supreme God of Man had descended to this era.

Although the voice he spoke with was hoarse, it was filled with dignity, as if he had the power to suppress all living beings. If the Immortal Ancestors were in front of him, they would instantly lose all will to resist and kneel and bow.

However, this suppression was only limited to the concept of "living beings" born from the Supreme God of Man.

Cui Heng had transmigrated from Earth, and he arrived here directly. His essence was unrelated to the living beings in this world, so he was naturally not affected by this suppression.

"What great fortune?" Cui Heng sized up this blurry face and asked with a smile, "Why don't you tell me?"

The moment this blurry face appeared, he could already clearly see the level of strength this face possessed. It was only slightly inferior to his current strength.

Is It the Foreign Realm or My Homeland?