Starting as a Class Five Mutant - Chapter 186 -

He became Arthur. He lived his life as Arthur and claimed Excalibur.Now, he has returned with a purpose.Beneath the surface of the world lies a twisted world known as the veil—an dimension where monsters are born from corrupted human emotions and desire. The deeper you go, the more terrifying they become.Each Layer is sealed. Each hides a god-like being, waiting to rise to the surface.Now, Sylas bears the responsibility of keeping the gate between both worlds from breaking.[Keys are passed down through generations.No one knows where they came from, but those keys can open doors to another world — a world filled with deadly trials. If you complete the trial, you return with blessings from gods, mythical beasts, and ancient warriors. The amount of blessings you earn depends on how well you perform.But if you fail, the door shatters… and you are gone forever.If you survive, you are given a permanent rank — a rank that decides your place in society for the rest of your life.]

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

The wind follows the dragon, the cloud follows the tiger, fame and fortune, dust and soil

Looking at Shenzhou, the people are suffering, thousands of miles of fertile land are barren

Look at the world, make all the hustlers, and make up for the incompleteness of heaven

Good man, don’t be parents, only for the common people, not for the Lord

Holding ninety-nine steel knives, killing Hu Erfang

I am a dignified man, why am I a barbarian as a horse and an ox

The strong man drank the wine in his bowl, and he traveled thousands of miles without looking back

The golden drums roared in unison, everyone roared, never breaking the Huanglong oath!

…………

In the eleventh year of the Shunzhi reign in the pseudo-Qing Dynasty, Zhou Shixiang, a Han from Xinhui in Guangdong, said, “My Han man will never be a slave!”

- Description from novelbuddy

Kim Jeongjin, an editor of a publishing company on the brink of closing due to bankruptcy, ends up transmigrating inside a fantasy novel as the incompetent youngest son of a wealthy family.

And here he thought that he should live a rich life in this life…

“Why was I given a high-level skill? Don’t even bother!”