Nigotta Hitomi no Lilianne - Chapter 176

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

To save the hopeless Dark Fantasy World, I held back my tears and destroyed the world, then killed the Demon King and returned.

Now, I’m trying to save the world using the ‘System’ I gained as the ‘Regressor’s Privilege’… but the Main Heroines have also awakened their memories of the previous timeline.

God damnit.

Lin Yan is a professional car racer who fell from grace after her sister set her up. She becomes an actress for the sake of her boyfriend, who later cheats on her with her sister. Her life, career and relationships reach a slump.

Enter Pei Yucheng, the president of the JM corporation—a multinational conglomerate. He is unfathomable, cold and aloof. At random, he would mysteriously lose control of himself, and Lin Yan is the only one who is able to calm him down. The first time she meets him, she feels an indescribable fear deep within her soul. Unbeknownst to her, they had met each other a long time ago, but she had chosen to forget him…

Soon, something puzzling and strange begins to happen to her. Occasionally, she loses consciousness and ends up in Pei Yucheng’s room the next day, completely unaware of how she ended up there. She suspects that something has possessed her…

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates