21st century Goguryeo - Chapter 484 - Season 2 Book 19 New Chinas Participation in War - 5-6 Stand By

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

Author, God or Plaything?Zar had just finished writing the prologue of his magnum opus—The Nexus Verse—a boundless verse of multiverses, godlike beings, and an elite academy meant to shape the strongest entities in existence. Years of meticulous world-building, complex power systems, and lore so deep it could drown a god… and yet, it was all just fiction.Until it wasn’t.On the night of his 22nd birthday, reality itself fractured. In an instant, he was torn from his world—only to awaken within the Nexus Verse as one of its rulers.There was just one problem.He had only written the prologue.Everything beyond that? Scattered notes. Unfinished ideas. Incomplete power systems. The vast, living, breathing multiverse around him was full of gaps he never filled. The beings he once considered mere characters now had wills of their own, and some of them were already far beyond his control.To make matters worse, the Nexus Academy—his ultimate creation, the battleground where gods and devils alike trained to surpass reality—had just started its entrance exam. And somehow, he was now part of it.Armed with only a mysterious system, fragmented knowledge of his own lore, and the terrifying realization that he may have made this world far too overpowered, Zar has only one goal:Survive.Because in a world where destroying a multiverse is just a Tuesday challenge, where ancient beings lurk in the void waiting for a single mistake, and where the strongest warriors wield power beyond his comprehension...Being the author doesn’t mean he’s the one in control.After all, if this verse was created… what destroyed the others?*****For fans of: Overpowered protagonists, cosmic-level world-building, reality-defying battles, eldritch horrors, and gods who fear greater forces.Additional tags#Gods #Devil #Ancient beings #Creators #Monarchs #OverpoweredBeings

Changqing has always felt that she’s incomparable to Guan Ying in every aspect. Even though she is pretty and has a good family background, this world is nothing more than a world where Princes are more attracted to Cinderellas.

Her first love that she dearly remembers in her heart for years eventually becomes Guan Ying’s current boyfriend and her fiancé is Guan Ying’s ex. He has yet to forget Guan Ying.

A business marriage brings Changqing and Song Chuyi together despite the absence of love.
In public, he is her friend’s ex and in private he is her husband who cannot be publicly–known.
At the hospital, her good friend enjoys her husband’s embrace while she can only act as though he’s a stranger.
At a gala dinner, her good friend hooks her arm around her first love’s arm shyly and she can only smile and give them her blessings.

…

In this marriage, Changqing thinks that all is well other than the fact that Song Chuyi doesn’t love her.
First, her husband is a doctor and he can treat all her illnesses while saving up on medical expenses.
Second, doctors love cleanliness and her husband would always ensure the cleanliness of the house.
Third, at the end of every month, her thin wallet would grow thick with cash that her husband stuffs in secretly.
Fourth, as a person who doesn’t like to exercise, she always get dragged around by her husband day and night to do some pleasurable exercise that is beneficial for the body and mind.
Fifth, she would never have to worry that she would be out of money.
There are always so many uncountable advantages that Changqing enjoys.

…

After the marriage, on a certain night, Changqing looks at Dr. Song gloomily. “Hubby, why are you so nice to me when you don’t even love me?”
Dr. Song continues reading his medical books and ignores her. It’s sometimes quite a headache when your wife is too stupid and daft.
Until one day, Changqing realises that there’s really no free lunch in this world…

- Description from Novelupdates

She, the “godly doctor” of an assassin organization in 21st century, transmigrated into the body of Yun Family’s abandoned, good-for-nothing Ninth Miss. Good-for-nothing? Then she’ll let the world see what a real good-for-nothing looks like. Summoners are legendary? Nothing is impossible in this world! She’ll become the first Magical Summoner.