The Godsfall Chronicles - Book 1, Chapter 32 Purposeful Poisoning

Those people killed her grandmother, murdered her younger brother, trampled the people she deeply cared about, and even took her own life.

It was because she trusted her ambitious stepmother and half-sister;

because she mistakenly believed that womanly virtue is to have no talent;

because of her noble status and origin….This is what caused her death.

Buried in river water, Ouyang Nuan, gritted her teeth and spoke, “I, Ouyang Nuan was wronged in death. Even if it takes forever, I will become a devil, and in the next life, will not let you off!”

When she once again opened her eyes, Ouyang Nuan was sent back in time to when she was twelve years old. Around this age, her forehead was scarred, her brother fell into the water, and in three years she will be married…

In this life, she will try to change everything to guard and protect those she cares for from those with treacherous intentions. She will live a glorious life!

- Description from Novelupdates

Going for a swim, she ends up in an ancient wild Beast World and ends up being brought home by a handsome wolf.
She wants to stick to the handsome wolf, stock some salt, farm some land, look at some handsome men and grow old like that, but the handsome wolf pounces on her every day.
What? He wants her to have babies?
NO~ NO~ NO~ There is no happy ending to interspecies marriages, hurry and let go of me handsome wolf~

- Description from Novelupdates

The Empire stands triumphant.

For twenty years the Dread Empress has ruled over the lands that were once the Kingdom of Callow, but behind the scenes of this dawning golden age threats to the crown are rising. The nobles of the Wasteland, denied the power they crave, weave their plots behind pleasant smiles. In the north the Forever King eyes the ever-expanding borders of the Empire and ponders war. The greatest danger lies to the west, where the First Prince of Procer has finally claimed her throne: her people sundered, she wonders if a crusade might not be the way to secure her reign. Yet none of this matters, for in the heart of the conquered lands the most dangerous man alive sat across an orphan girl and offered her a knife.

Her name is Catherine Foundling, and she has a plan.

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A Practical Guide to Evil is a fantasy series about a young girl named Catherine Foundling making her way through the world – though, in a departure from the norm, not on the side of the heroes. Is there such a thing as doing bad things for good reasons, or is she just rationalizing her desire for control? Good and Evil are tricky concepts, and the more power you get the blurrier the lines between them become.

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.