KuroiBara's Manga

In order to protect the ML from dying, Yeni decided to seduce him instead of letting him marry the black magician. However, due to her own affinity to magic, it has caused more trouble for both of them.

Ilran ended up pregnant after she slept with the Emperor during a festival, because of this, she chose to run away and hide. Five years later, the Emperor found her and brought her back to the Capital along with their children. But now they'll have to face the rebels who is trying to kill the Emperor.

The FL ended up in the body of Roseria who was the antagonist's mum. He would eventually kill her in the future according to the story that she read before. The FL changes the way she treats the protagonist in hopes to avoid her death and to show some love to her son, thus bringing the attention of the Duke, her husband.

One day the tyrant Estian sent a marriage proposal to Cecil. She got dragged to the empire unwillingly but when she saw the emperor's face she had a change of heart.
"You're quite the hottie aren't you?"
She liked her husband.
And her husband likes her back too!
To live happily with her tyrant husband
Does Cecil need to become a villainess far worse than the tyrant?!

Regina who was supposed to be killed by Arsene at the beginning of the novel has avoided death after the FL appeared in her body. Arsene found out that was there at the scene of the murder and chose to propose to her, to make sure she kept quiet about the murder. Regina tries her best to survive and escape from her fate.

My family and my husband killed me because of the inheritance I got from my father. Returning to the past, I made up my mind. “I have to protect my life and my inheritance.” I offered the Grand Duke Lapireon of the cursed family a one year contract marriage for my own protection.

The FL was reincarnated into the body of Dahlia after she killed herself because of her bully, who is now in the body of Dahlia's sister Flore. She made a contract with the Duke for her revenge and to help him gain the position of the Emperor.