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

Shen Yu's heart was filled with gloom.

He never dreamed that he would actually sit in the position of the General of the Battle Cui Alliance Army.

He was just a small Youzhou State Overseer, and his family did not even have a Deity Realm expert, nor did they have an Upper World Angel. He was clearly so inconspicuous, so how did he become the General leading an army of a million troops?

The reason was only because he often sent troops to fight with the grassland barbarians as the Youzhou State Overseer.

How could fighting barbarians be the same as fighting Immortals?

At this moment, in Shen Yu's heart, Cui Heng was an Immortal.

And was not just a Human Immortal or Earth Immortal, or the omnipotent Immortals in folklore.

This was an Immortal who could take a person's head from a thousand miles away, and killing Deity Realm experts was like killing a chicken!

If this wasn't a true Immortal, what was?

It's Just A Strand of Hair