The Villain Doesn’t Want to Get Entangled with Beautiful Girls After Rebirth

Lin Nuo, a world-destroying villain, is killed by his junior sister, the protagonist, and is reborn five years in the past.
What should a reborn villain do? Suck up to the protagonist?
No! Kill her before she rises to power!
He devises every possible plan to kill her, but something feels off.
Why did he end up eliminating other villains instead, while the protagonist not only survived but advanced even faster—and her affection for him skyrocketed?
Why does everyone now see him as a righteous hero?
Why are more and more girls falling for him?
Why did he suddenly develop a body that enhances cultivation and get dragged into dual cultivation by the protagonist?!
Why does every attempt to do something evil only push him further down the path of righteousness?
“Just give me one more chance—I really want to be a bad guy!”