Happy Maji

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.
The original Host was as stupid as a pig. As the lover of the villain, she helped the male protagonist steal the important documents from the villain and backstabbed the villain for the male protagonist.
The ending was, of course, being attacked by both the male protagonist and the villain, and, dying miserably.
And the point where Mu Hui transmigrated was the moment when she stabbed the villain and ran to the male protagonist's side—
What could she do to change her fate?
Mu Hui made a prompt decision and placed the knife that had stabbed the villain onto the male protagonist's neck. "The scene just now was deliberately acted out by my man and me. Return the document to my man immediately!"
The male protagonist: ""???""
The antagonist: ""???""
Later on, Mu Hui constantly helped the villain Fu Siye fight monsters and level up, just so that she could live longer and return to her original world.
However, one day, after a bath, the villain came up to her. "You've been my lover for so long. When are you going to consummate your marriage?"
Mu Hui: “???”
This was not how it was written in the book!
[Even if it is meant to be, it can be changed step by step.]

EndlessFantasy Translation 

Transmigrated into a Book and Became a Spoiled Antagonist

chubannians

Mu Hui retracted her hand, her gaze still cold.

The ninth master coughed for a long while before finally saying, "This is a book piercing project. All of you are the test subjects that have been put into the book. The rich people in the real world are doing this project to develop a book piercing project. First, we'll see how many people a book can carry. It's similar to a tour to Mars. As the first batch of test subjects, you are the abandoned group. They will continue to insert people into this book until the world completely collapses."

In other words, in the end, all the people that were inserted into the book will die?

Mu Hui quickly caught the loophole in his words.

"You know so well that you're in cahoots with those tycoons?"

But if that was really the case, why would he hunt down the book readers?

The Book Piercing Project