What Should I Do When the Heroines Fall for Me, the Villain?

"Miss, I Only Want to Cultivate" is a novel with multiple heroines.

But the author promises it only has one heroine.

Readers all say they know what's really going on.

Then I transmigrated into the book as a handsome villain.

Only then did I learn that the protagonist's younger sister is a hidden BOSS:

the world's number one martial artist, a possessive yandere!

Now she's got me.

How do I make the heroine fall for the villain?

I'm waiting for answers. It's urgent!

P.S. This book is "The Villain's Reversal". The book I transmigrated into, "Miss", has a single heroine.