Kaijin Fighter: So I Have to Make Monsters, So What? - Chapter 43: Into the Ruins

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

Nascent Soul True Monarch failed in his celestial tribulation and returned to his student days.2013, when the mobile internet was just emerging, amidst the surging tides of the era, a cultivator's daily life.

Yan Wushi had walked a path full of blood and corpses.

He did not believe in the good nature of humanity. Even more so, he did not believe that there could be someone with great kindness and sense of justice, who would be so considerate of others without asking anything in return.

One day, Shen Qiao, who was the sect leader of Mount Xuandu, the number one Daoist sect under the heavens, was challenged to a duel but somehow fell off the cliff.

Yan Wushi happened to pass by down there.

Seeing Shen Qiao who was seriously injured to the point of dying, he suddenly came up with a perfect idea…

After thousands of autumns, who could stay eternal?

- Description from Novelupdates

The person who was locked away inside the thorn-covered tower was not a princess, but a witch who employed the powers of darkness.

A brave young hero came searching for the tower in order to kill the witch.

– Light would force the darkness to recede, and grant it eternal rest

The witch wished.

That things would end with, ‘and the hero lived happily ever after killing the witch,’ like in the fairy tales.

And so, she had devised everything to happen in accordance to her wishes.

But the boy, who had grown up in but no time at all, would make the unfamiliar face of man’s from time to time.

“You want me to kill you? ……Do you really think I’ll let you go?”

Reality was very different from the fairy tales.

“The people don’t know of the precious treasure locked away in the tower.

I won’t let anyone else have this god given treasure, this crown of god surrounded by thorns that no one else could recognize.”

The hero gave the witch a slow and deep kiss.

“I am the true victor, and no one else.”