Eldritch Creature's Guide - Chapter 222 Yvraine’s Feelings I.

Liv Hamelsvoort, who bears the label of the ‘Fake Saintess’ and is the laughingstock of high society for her unrequited love for Duke Lartman. No one could understand her, but she likewise couldn’t understand them.“I’m in the middle of enduring the love of the gods.”There was a world that ordinary humans couldn’t dare to comprehend.“Who harmed my child?”“Does my child not exist in this world?”“I don’t need a world where the child I love doesn’t exist.”The moment the enormous things she had been bearing were revealed, Liv’s life finally began to change.“I will love you in any timeline, Your Grace.”Liv was content as long as she could continue loving. But if she wanted to protect that love, she had to change; the world was whispering that to her.

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

As a cultivator, Lan Tian never expected she'd been hurled back to the 1970s countryside!Suddenly stripped of her powers, she's surrounded by mud - brick houses and farmland. Facing farming to social quirks with no modern conveniences, she relies on her cultivator's wisdom and resilience.