I Alone Level-Up (Web Novel KR) - Chapter 183

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

I woke up in my sleep, and a strange door appeared in my home…Behind every door is a strange world.

In the nightmare world, Jiang Cheng added the news from the strong man to the fat man, and he almost cried when he heard the latter, “If you die here, the whole family will stand upside down and bleed?”

“Is such that.”

“Then I don’t think you are too scared?” The fat man widened his eyes.

Jiang Cheng turned his head and said in a very formal tone: “Because I am an orphan.”

- Description from novelbuddy

When disaster strikes, all order collapses, money becomes meaningless paper, and discussions about order lose their significance. The only assurance that remains is power. And I, possessing power, can do as I please.In this post-apocalyptic world, besides growing stronger, Li Ming must also deal with the persistent neighbor who continually sends the wife to borrow food.“Ma'am, you can't always request food without offering anything in return, can you?”

The 27-year-old genius beauty doctor Xia Qing dies in surgery!She is reborn!She is reborn in the ward she’s most familiar with, in the body of a 200-pound pregnant woman—a woman who had died from pain during a Cesarean section due to her requests to not use anesthesia.She can’t help but worry about herself. This body was useless except for being young.How could Xia Qing tolerate this?On the menu are—revenge, losing weight, and snatching the idolized man of a scumbag girl in passing. Although she’s overweight, she strives to live well. Being overweight isn’t the end of days. They still deserve love.“Have you heard? Boss Pei has a child out of wedlock. He’s getting married!”“Who’s he marrying? Who?”“That 200-pound fatty from the Lin family of South City!”“Is Second Master crazy?”Lin Xiaqing turns her head to look. “You think I’m fat?”