Our main character was an unsuccessful romance fantasy novelist when she gets into a hit-and-run then wakes up as the villainess in a best-selling martial arts novel. She uses the information from the novel that she had analyzed in her original life, in order to avoid her death-ending and finding the truth behind what had really happened to her.

Ariadna Lereg Ilestri Pre Agrigent…

And so my life begins with this ridiculously long name, born to royalty and the center of attention — all because of one dangerous man; the veritably insane tyrant king, ruthless conqueror of ten empires, nightmare of all continents… and my father?! Will I be able to survive with this maniac?

My friend stole my boyfriend and then dared to hand me a wedding invitation with a smile?

Ha! I had a blast enjoying my revenge and came home and fell asleep but...when I woke up I was in the body of the Villainess of a Romance Fantasy novel who has everything: appearance, assets, and intelligence.

The only thing this girl lacked was the insight to judge a man.

Throw the bastard Prince away to the main female lead and let us just enjoy the luxury of power and money!

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world will Daiki do?

There is a famous fairytale. A kindhearted girl whose father and stepmother got married and became a family of five with her two stepsisters. The poor girl who was condemned by her stepmother and stepsisters when her father died. The very fairytale, Cinderella. But I am not Cinderella, I am the stepmother. At the age of thirty-seven, already married twice, been widowed twice and is raising three daughters!

Daniel Walford, a man who keeps approaching me while I’m busy trying to raise my three daughters.
“Can I kiss you?”
As a son-in law, I think he’s a little bit older but why does he keep approaching?… Oh, I don’t know.
Once I let Cinderella marry the prince, I can live quietly.
But is this fairytale really ‘Cinderella’?

Somehow, before the appearance of the female lead, I became the male lead’s temporary wife. Since things had already turned out this way, I decided to try my very best. However…

“It’s so fortunate that someone like you became Cedric’s partner.”
“…I’ll admit it. It’s a fortune that you were the one to become his wife, Dylan.”
“It’s such a fortunate chance that you were the one to become the Lady of the Brighton House.”

…I think I did too much of a good job.

When Cedric’s destined partner arrives, I will have to leave. What should I do? To someone like that, Cedric had said this.

“Would you have ever thought that the one I would fall in love with would be you?”

…Would you still say the same to me after the real female lead, Adeline, makes her appearance?

What was waiting in the world of reincarnated otome games - an extreme life of being trained by a super sadistic prince?!

One day, office lady Anna Tobita wakes up in the body of Annelie, the villainess of the R-rated otome game, "Cress Secret Love Story," and wife of the crown prince Reinhard, one of the game's love interests.

Annelie is destined to meet a horrible fate in all endings of the otome game, regardless of who the heroine Mia ends up with. What's worse is that while her husband Reinhard seems kind and gentle on the surface, he is secretly a tsundere, sadistic prince who has now decided to help Annelie regain her memories the only way he knows how: By making her submit to him!
Artist's Twitter: https://twitter.com/carmilla_soda

A time travel action fantasy of the strongest of mankind. “Even if the disgusting gods gave me this chance, an opportunity is still an opportunity. Since they want to end up dead, I will kill them.” The last survivor of mankind, Zephyr. The fight with the demons ended in defeat and the gods gave him a chance to go back 10 years in time. The demons who took everything away from humans and the gods who treated humans as beings for sightseeing. This time, I will tear them to pieces.

(Bad luck and Good luck are like two sides of the same coin!? Defy the misfortune!)

Siegbert reincarnated after an accident because of his bad luck. His new family is so warm that he can’t believe that his past life was a stroke of bad luck. In this life, he thought he would be able to spend his peaceful life… but he holds unbelievable [luck value]…?

(Good luck attracts opportunity. If you can seize it, your wish will come true!)

The family and others are in desperate, after strong enemy (chance) one by one stand in the way!? No, I will hold it with my extraordinary magic power and appraisal eyes. (seize it)

From “Shousetsuka ni Narou” A heroic tale of a boy who becomes the strongest to protect his warm family! Also includes a newly written novel from the original author.

After reincarnating in a different world, the great sage Ephthal spent all of his life researching magic. However, he who had aimed to reach the summit of magic, knew of the limits of his talents and fell into despair, thus closing the curtain to his lifetime.

However, 400 years later, he reincarnated for the second time and enrolled in a magic academy using the sorcery and knowledge he acquired from his previous life. As if to sneer at the state of magic that had been in decline for the past 400 years, he easily invokes legendary class magic!

With overwhelming power, the entire world will kneel before him.

For 52 years, Takumi Fujimura, a craftsman who has continued to hone his skills at a town factory, finds himself in a predicament when he has a dispute with a client and stops getting loans from banks. After many years of hard work, he finally collapses, but he awakens in a different world where he meets Frau, a girl who aspires to become a hero. With the benefit of modern technology and decades of crafting skill, can Takumi take this new world by storm?

An official spin-off of the the super famous fantasy "The Eminence in Shadow".
OP main character × isekai reincarnation × misunderstandings!? This is the beginning of a spin-off of the super-famous web novel isekai fantasy "The eminence in Shadow".
Cid is a boy who reincarnated in another world, and decided to enjoy a scenario of being "the eminence in shadow, someone who meddles with the story from the shadows, and exhibits his true power in secrecy". Thus unfolds the story of him and the secret organization he leads—shadow garden—as well their their pleasant friends! An easy-going 4-koma manga starts right here and now!

I found myself possessed in a game I used to play occasionally.
And to top it off, I'm the female warrior of a barbarian tribe that only has bad endings.

...Alright, let's escape.

Late at night in the middle of my part time job at a convenience store, I had an encounter with a robber and was mercilessly stabbed to death.

As I was about to lose my consciousness, I thought about how much I wanted to do this and that when I heard a voice……

『The wish to be summoned has been confirmed. Granting Unique Skill 《Jack of all Trades, Master of None》』

Rude words such as that were said. Jack of All Trades, Master of None? Don’t screw with me!

Such thoughts and wishes were for naught as my consciousness faded, when I came too I was standing on a green foggy hill.

(no overpowered protagonist and no harem)
[Description from novelupdates.com]

Aikawa Eri dies in a traffic accident after staying up all night playing an otome game. She reincarnates as Eris, the villainess of her favorite game. In order to avoid the bad end, she tries her best to change the story, but as expected, it’s hard to rewrite fate…

She is abandoned by the prince. Even more, her life almost ends when she is attacked by a gang of thugs, but a young man appears...

Will the antisocial prince change her destiny? This is the reincarnated villainess’s rebirth romance fantasy!

The first life. After a tragic accident losing his family and legs, he ends his own life. The second life. He earned fame as the Red Demonic Master in Zhongyuan, but was betrayed by the man he trusted the most. And now comes his third life. In his life back in the modern world, Gang Jinho decides to live a normal life... However, he was too used to the Zhongyuan life to become a normal person! 'I wanted to live peacefully. But you are the ones who started it. I hope you're prepared for this.' In front of the threats of his new life, can Gang Jinho shake off his impulses as the Red Demonic Master and obtain the 'normal life' he desires? The adaptation story of a legendary martial artist in the 21st century!

Scamming all day, every day, often venturing alone. He bluffs to get the ultimate power in this cultivation world?! world traveler Xue Que doesn’t always bluff, but he needs to.

The story begins with a beautiful girl, her perfectly fake smile, and the people who love her selfishly for it.

What transpires behind the scenes of the glittering showbiz industry? How far would you go for the sake of your beloved idol? What would you do if you found out reincarnation was real? The star of the show is Aquamarine Hoshino and the stage is but a mere facade. Will he manage to reach the climax before the world of glamour swallows him whole?

Note: In August 2021, Oshi no Ko won the Next Manga Award in the print category.

He is a successful writer who has created a fantasy world in his novel. But he made a terrible mistake in the end, causing the protagonist to reveal himself as a traitor and the world to be dominated by the demon king. He received the wrath of readers and regretted his choice.

Then he woke up in his own novel, in the body of the villain Shin Kang Ho, a ruthless killer who works for the demon king. He is five years before the disastrous ending, and has the chance to change the fate of the world. But Kang Ho has no intention of being a hero. He knows the world is cruel and full of greed. So he decide to use his talent and knowledge to achieve everything you can, without caring about others.

Kang Ho will devour all the resources, rewards, skills and treasures he finds on his way. He will become the strongest and richest of all.

“Your names will be Arjen and Arien.”

We were just like any normal twins going to high school, but then we lost our lives to a sudden accident and our second life as twins began!

And so we live inside an abandoned palace along with an abusive mother and a cold-hearted emperor as a father.

But on our 5th birthday... The king suddenly wanted to see his children.

"Why so suddenly?"

We can only trust ourselves!

Initiate the twins' Project Survive the Palace!
Links:
Promotional Video: https://www.youtube.com/watch?v=_cWvQ8JJxDw
Original Web Novel: https://page.kakao.com/home?seriesId=51841156