She possessed the mistress of the male lead in an R19 novel. In the original novel, the male lead was trash who abandoned her after getting her pregnant, saying that he belatedly realized that he loved the heroine. Fortunately, it was still before the original work started. She decided to scrap that shit herself.

"No, I don't want to," she flatly rejected Killian's offer to have an affair with him.

When he asked her why, she smiled brightly and answered, "Young Master is not my taste. If I must say, your younger brother is much preferable.”

"What? You prefer my younger brother?"

Yeah. Not you, but your brother.

Unlike the original, she firmly set up an iron wall, took care of Lexion, the younger brother who was abused by his elder brother, and protected the original female lead who had low-esteem from that shitty male lead.

And now that she'd already done what she had to do, she's off to go.

But a few years later–

Lexion, who had pushed out his older brother and taken the ducal title, came back to her as a beast with a decadent beauty. On top of that, he was even holding the engagement document that she had signed as a joke during their childhood.

"I've never forgotten you for a moment. Please marry me, Noona."

No, wasn't that just for playing house?

Every time she refuses his marriage proposal, he gently hugs her around the waist, and asks in a cold voice, "Did your taste change while I was away?"

Lexion's eyes were full of life as he asked.

It was as if when he found out who her type was, he'd kill them right away.

Original Novel:
KakaoPage, Naver Series

Original Webtoon:
Daum, KakaoPage

Official Translations:
S

I’ve been reborn as Leonora, the illegitimate child of the dukedom of Hachaina. Though death will soon befall our ill-fated house, this storybook life is better than the betrayal I suffered in my past life. But what if I could change destiny? I’ll tame wild beasts, harness the power of auror, and do whatever it takes to save my family. Also, I’m not alone. Someone has reincarnated into this story to sabotage me. Will I have enough time to change my fate? Or will the House of Hachania fall again?

Original Novel

Original Webtoon:
KakaoPage, Daum

Official Translations:
English, Japanese, Indonesian, T.Chinese,

Alexandra Arvan, daughter of a count, agrees to marry Pavel Volkov, son of the Grand Duke, in order to pay off her family's debt. Suffering from an incurable disease, Pavel is notorious for his foul mouth and hot temper. Alexandra feels pity towards her young husband and treats him with kindness and care, which may help save him from his terminal illness as well as from his deep despair.

Original Webtoon:
Bomtoon, Comico, Lezhin, MrBlue, Naver Series

Official Translations:
English, French, Japanese

In my first life, I was the illegitimate child of a chaebol family ("rich family,,). In my second life, I was the illegitimate child of a witch. Now, in this life, I've been reincarnated as the illegitimate child of a family destined for destruction in a novel!

Planning to leave behind the doomed family, strange things start happening. Dad, who in the original story never cared about the illegitimate child, is acting weirdly. "Bliss, I can do anything for you."

And now, the villainess sister who will ruin the family in the future catches my eye. "Hello, dear, I'm your sister..."

Alright! Let's live with my family in this life!
But as soon as I make that decision, the male leads who should be with the original heroine start obsessing over me!

Is this okay for my third life?

Original Webtoon:
KakaoPage, Daum

Official Translations:
Japanese

I am a successful woman in her 30's excelling at her career. But I guess the tables turn when life seems too perfect. It is just my luck that I woke up as Camilla Elchasis, a character in my favorite novel whose life is filled with trouble. After possessing Camilla's body, I first need to get rid of my ridiculous fiancé and his mistress who are fooling around in my house. I must also deal with my half-sister and father who wish to kill me. Meanwhile, why is Duke Caliet so obsessed with me? "You started it, so I'll finish it."

Original Novel:
Naver Series, KakaoPage, Ridibooks,

Official Translations:
English, Japanese, French

Latia's family took in Karshian when his father went on a maritime expedition, but after rumors go around that he's dead, they treat him like a parasite. Egged on by her sadistic parents and desperate for their approval, Latia bullies Karshian relentlessly. However, when Karshian's father returns as a national hero and powerful duke, Karshian gets his revenge by executing Latia's entire family! As she recalls her last moments, she realizes that her family had been lying to her all along. So when she's thrown back into the past, she's determined to prevent her death and treat Karshian right this time. But this won't be easy when Karshian distrusts Latia's every move. Will Latia be able to win over Karshian and turn the tables on her family this time around, or is she doomed to die once more?

Original Webtoon:
Ridibooks, MrBlue, Naver Series, Lezhin, Comico, Anytoon

Official Translations:
English, French, German, S.Chinese,

I transmigrated as the wife of a cursed archduke in my own twisted novel. As the author, I took responsibility and set things right by lifting the curse, which was the key to returning home. I thought my job was done, and just when I was finally trying to go back, the archduke asked me, "Did you really think I wouldn't know that you’re planning on returning to your fiance?"

He had completely misunderstood!

"Whether you like it or not, I'm still your husband. I'm never letting you go back to that bastard."

All I want is for him to please let me go home!

Original Webtoon:
KakaoPage, Daum

Eve was once a human woman who loved to read romance novels. But after being reincarnated as an ice magic-wielding wolf hybreed in one of her favorite stories, Eve runs into a dragon hybreed named Rahel who will kill her in the future and fall in love with her little brother, Sion. Now, Eve thinks her only hope of survival is to save enough money to move to the human world. But as Rahel grows more attached to her, Eve has no idea if she'll cool Rahel's fiery nature or burn in a blazing inferno!

Original Webtoon:
Daum, KakaoPage

Official Translations:
English, S.Chinese, T.Chinese, French, Indonesian, Japanese,

Roana decided to enjoy a leisurely life after marriage.

On a walk, she found a familiar looking fruit in the garden. Using the knowledge from her previous life, she reproduced coffee.

While reproducing coffee, her only thought was drinking a bit between reading...

"My brain is clearer than usual, full of energy, and new ideas keep coming to me."
"What is this? Is it a drug? What's the name of this drink?"
"...Thank you for letting me experience this."
"I've never had this kind of bevarage before!"
"It's very... very delicious."
"...."

But people from this the world love coffee so much..

"Because you are not afraid of me. That's what I like about you. So much that my heart hurts."

And her husband who was supposed to be cold-hearted, something's wrong with Klaus...

Can Roana enjoy her coffee life properly?

****************

Loanna was raised in neglect and isolation as an illegitimate child of the Count Louis family.

She gets married off to Duke Bruggen, who orders her to keep quiet and out of the way. Free from all expectations or responsibilities, she roams around the castle and runs into a coffee bush.

A passionate barista in her past life, Loanna remembers exactly how to brew a perfect cup of Joe.

The trouble is, no one in this realm seems to know what "coffee" is, nor its wonderful benefits. As a matter of fact, coffee fruits are regarded as "evil."

As a coffee aficionado, Loanna is determined to turn this reputation around.

Original Webtoon:
KakaoPage, Ridibooks

Official Translations:
English, French, Japanese

An overworked girl strikes gold, waking up as wealthy noblewoman Yvonne Argentrose in a novel. Once a jealous villainess one-sidedly obsessed with the crown prince, now all she wants is a peaceful and opulent life. Still unconvinced of her transformation, her family tries to set her up with the empire's perfect man, Duke Ehels. But when the once uninterested crown prince catches wind of this, he becomes jealous, and drama ensues! Can Yvonne escape the drama and enjoy her new life in peace?

Original Novel

Original Webtoon:
Daum, KakaoPage

Official Translations:
English, Japanese, Indonesian, T.Chinese,