A Gunslinger's System in a World of Magic - Chapter 134: Out Of The Sarcophagus

Everyone in the City of Jing thinks that bestowment of marriage between Xian Junwang and the daughter of the Yi’an Marquis House is to insert a fresh flower into manure.

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

As a top manager, everyone constantly tries to curry favor with Li Xiwu. And due to her identity as Mrs. Pei, the rich and the powerful would always greet her politely. A celebrity instructor, and the wife of a man from a rich family… Is there anyone who would not envy her? However, only Li Xiwu knows that she is a substitute for Mr. Pei’s unrequited love, and none of her titles or privileges have anything to do with her.***

Losing yourself after being someone else’s substitute is a tedious thing. Having gained that epiphany, Li Xiwu began to ponder how she should claim alimony of astronomical proportions from Mr. Pei. However, while she was obsessing over how to get rich from the divorce, her mother-in-law, who had always disliked her, invited her to take part in a variety show, while promising to make her rich. Li Xiwu’s lips curled into a grin. “Fortune favors the brave!”At first, her mother-in-law constantly attempted to embarrass her, and netizens were all moaning about how she was the most pitiful rich daughter-in-law! Later, her mother-in-law was inseparable from Li Xiwu, and would keep bragging about her to everyone she met, leaving the netizens cheering: Leave the face-slapping to Mrs. Pei! Li Xiwu did not expect herself to shoot to fame in the variety show either. However, while she was convinced that she could get a smooth divorce afterward, her mother-in-law called her son immediately as soon as the variety show ended.“Divorce my baby, and I will disown you!”Mr. Pei: ???