MTL - Solo Leveling (Only I Level Up) - Chapter 46

The light is here because the darkness exists. Just like that, the human realm exists because the demon realm is here. And in the great palace of the Blade Empire, a crown touches the peak of its glory before it falls from its grace. Lush Von Blade was the royal crown prince of one of the greatest empires on the southern continent. He is loyal but betrayed.On the other hand, where even the Gods fear to set a foot on, a demon lord abides. His grace and cruelty have been unseen for centuries. He is the supremacy in the three realms. While Lush is the light, he is the darkness. Each exists because the other is here.

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

Xerox Zee had always thought of himself as an ordinary guy—just another face in the crowd. That was until his 18th birthday when his System finally gets Unlocked!.The System revealed a shocking truth: the world he lived in was exactly the same as the plot of a novel he had once read!But instead of being helpful, this turned out to be a big problem.Main Character : “I’m meant to save the world and become the strongest. Everyone else is just there to help me along the way!”Xerox Zee : “Hold on... am I just one of those people there to make him look better?”It seems like I'm just a stepping stones!

A young man sat on a chair and looked out at the ocean. With one wisp of Spirit Qi, he could point anywhere on this vast and expansive world, pointing at any place that didn’t look right.

Someone once became the last one to wield a knife that could decapitate huge dragons and bathed in dragons’ blood. Someone once loved treating others to chicken soup, so he kept nine phoenixes in his backyard.

Someone once sat lazily on the top of mountains as his words flooded river banks, and his qi could hold a million soldiers back. Someone once moved mountains and shifted hills with just one brush, his paintings so captivating it could enchant immortals and deities.

That year, the warmth of spring made the flowers bloom. They were merely an ordinary butcher, a bookworm, a chicken farmer and a poor artist. This is the story of how a Low Level Martial World Continent was transformed into the Ultimate Fantasy Universe.

- Description from Qidian