After I Transmigrated into a Book, the Supporting Actress Was Guaranteed a Bad Ending

Transmigrate into a Book: The Female Lead Falls for the Villain and Tries to Win Him Over. No Quick Transmigration!

The female lead transmigrates into a book solely to win over the villain. I do not want stories where she tries to matchmake the male lead and the original female lead.

Any Stories Similar to The Guidebook for Villainous Women?

Historical Romance: Transmigrate Into a Book as the Villainess and Redeem the Antagonist, With Lots of Sweet, Flirty Moments

A transmigration-into-a-book historical romance, preferably with cultivation. The heroine transmigrates as a supporting female character and saves the villain, who's very good at taking charge but also adorably soft.

Looking for Stories Where the Female Lead Transmigrates Into a Novel She's Read and Saves the Villain, With Mutual Redemption

The heroine wants to follow the original plot, but ends up becoming the white moonlight in the male villain’s heart. Only at the very end does she realize her own feelings.

Any Stories Where Someone Transmigrates into a Book as a Supporting Female Character or Cannon Fodder, Then Grows to Care for the Antagonist or Male Lead?

Are there any stories where the heroine transmigrates into a book as the female supporting character or cannon fodder and comes to care for the villain or male lead? No awful female leads, no System, and no useless characters who are always trying to cling to powerful people. I want a heroine who is extremely gentle and natural, with no System or personal space.