Secret World of Occultists - Chapter 5: Indoor Market

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

What happens when, in the midst of struggling to keep up with life, you suddenly discover that you were a princess in a past life? Now, you're just a waitress with a drunken mother and a pile of bills to pay. But deep down, you know one thing: you’ll find the stupid jerk responsible for ending your royal life, no matter what it takes.Alexia POV:Then there are the spoiled, narcissistic rich jerks who think their daddy's car gives them a free pass to treat women like objects. Not today, Satan. These guys are like walking perfume ads with egos bigger than their bank accounts. I swear, they should just marry themselves—they're clearly their own type.When one of those jerks lands at my table, I can smell the entitlement from a mile away. I don't even wait for the inevitable sleazy pickup line or the “accidental” brush of their hand against mine. Nope. I pawn them off on one of the other waiters faster than you can say “unpaid rent.”

After waking up, Su Mu found himself in a Three Kingdoms game beyond reality, and became a low-level farmer NPC who was recruited by the player’s village.

The Three Kingdoms were in troubled times, and the wars were endless.

The safety of the farmer NPC cannot be guaranteed in the slightest.

Fortunately, with a unique talent, Su Mu, who was adopted by Bai Fumei players//raised, can change jobs infinitely!

Turn 1 [militia], turn 2 [archers], turn 3 [spearmen], turn 4 [heavy armor sword], turn 5 [black cavalry], turn 6 [generals], turn 7…

Unlimited career transfers, unlimited enhancements!

When the game and reality are connected and the supernatural comes, Su Mu has already become a mythical general who can beat the world, unifying the game and reality, and creating his own supreme fairy garden!

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.