MTL - Self-discipline, I’m Invincible - Chapter 31 These two, don't they?

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

A villainess known by all as a wicked woman who has done all sorts of evil deeds—Ducal Lady Violet.
She regained her memories of her previous life after she fell into a lake and almost died.
The very moment she woke up, she immediately visited her father, Duke Everett, and asked one thing.

“Please confine me to the annex.”

And so, she imprisoned herself there.
Now that Violet was secluded away from the world’s criticism and reproach,
She immersed herself in her previous life’s memories and started painting them.

“What the hell are you up to this time?”

Everyone was suspicious of just what she might be scheming.
However, the misunderstandings surrounding her gradually got resolved one at a time…

A long time later, Ah Zhao and her younger generations started chatting about her own story.

“At first, I was selected by the system to become the man’s plug-in to help him reach the pinnacle of life.”

“-Then what happened afterward?”

Ah Zhao lit a cigarette and her expression had great changes:

“-Later, I became the wife of the Male God.”

- Description from novelupdates

Born with the fate of a slaughterer, but all he wanted to do was help.