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

Amy had a look of disbelief on her face. She held onto the staff member who was about to leave in exasperation.

"Is my bid the same as the Fu Corporation? You guys are mistaken! It was clearly Mu Hui who copied my bid!"

The staff member had a look of confusion on his face. He scratched his head and confirmed once again, "I think Miss Amy is mistaken. Your bid is the same as the Lu Corporation. What does it have to do with Miss Mu Hui?"

After that, he added, "Miss Amy should know who plagiarized who. Could it be that the one who submitted first plagiarize?"

Amy held the bid that had been returned to her. She gritted her teeth so hard that they were about to break!

Everyone in the hall kept staring at Amy and was extremely excited.

"This is too embarrassing. It's practically a public execution."

"Then she deserves it. Plagiarism is too wicked!"

"But, how did she know about the Lu Corporation's design?"

Losing All Decorum