Owari no Chronicle - Volume 1, Chapter 4: A Mysterious Abyss

She shouldn’t have got drunk, so she wouldn’t have court the troubles.
She slept with a handsome man and would be sent to the police?
Oh, my sweet Jesus…
“So you just ran away like nothing happened after you slept with me?”
“Old jerk! Even if I had the initiative, it was you who took advantage of me!”
As a saying goes, the more spoiled a president gets, the more likely he becomes a scumbag.
An adorable ‘wildcat’ vs. a scheming frenemy.
This was a love rivalry between a modern Cinderella and a Big Boss.
As time flew, the world was like a fleeting show.
When they met again after several years of separation, he held her hand tightly and swore that he would never give her any chance to leave him again!
Finally, he asked her to marry him and pampered his cute wifey with his endless love.

- Description from Novelupdates

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

The downfall of the infamous white lotus, Lexi Yang led her to the only escape she knew -- SUICIDE.

Born with a golden spoon, having all the privileges being the young miss of the prestigious Yang family, Lexi Yang was the type of person that whatever she wants, she gets. However, fate must have challenged her the moment she fell in love with the domineering CEO of Liu Empire.

Alas, just like in every romance novel, Morris Liu fell for another woman who's kind, fragile, and gentle.

Due to her intense desire to gain Morris Liu's love, she has done extreme vicious deeds. But in the end, everything backfired on her.

Now, on her death moment, just as her vision went to a pitch-black abyss, a cute minion voice was heard.

“Chuchururu~! CONGRATULATIONS! Your viciousness score surpassed the preliminary test! To receive full access to the 'otome love system', here's the initiation main task -- make your ex-fiance's best friend fall in love with you!”

To reward Meng Fan for his bravery before his heroic death, the cosmos rewarded him with a ‘system’, sending him back in time to three months ago, alive.

- Description from Novelupdates