MTL - Cosma Empire - ~ Unexpected situation

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

On the plane, a roar came from the broadcast. "Zuo Aiai, you still dare to run away for me? "She raised her voice. "The world is very big, I want to go out and take a look. ""You can go out, but I'm afraid you won't be able to come back, " the man said shamelessly."Why? "Zuo Aiai blushed. "Get lost""Your photo has been posted on the world's best-selling magazine! " The man said domineeringly. "according to your husband's popularity, there are countless women who want to kill you. For Your Safety, be good! Come home with me! "

After nine years of traveling with her parents, Long Shiyan’s family encountered a group of bandits. Although her parents died, Long Shiyan was able to escape from them with the help of a system. From it, she learned that she was stuck inside the world of a harem novel! In order to revive her parents, Long Shiyan must prevent the protagonist of the original novel, Long Aotian, from capturing wives and attaining a harem. Otherwise, the world would end!

But, after saving a future harem member from Long Aotian’s clutches, why did this girl obtain a more terrifying characteristic than blackening into a villainess…

- Description from Novelupdates

Zhou Donghuang, a man from the Earth, is able to destroy any planet in the universe without lifting a finger. His supreme will can sweep across the vast cosmos in the blink of an eye. And his immortal spirit can depart from his body and wander around the universe!