Incest for curious souls

MC and ML are not blood-related siblings.

She was reborn in the war novel as the sister of the villain who had never shed blood nor tears.
The person acting as my ‘brother’ was a villain who, after losing the war, would be sealed away by the male lead.
So all I have to do now is pretend to be his sister until he later disappears.
Or so I thought...
What’s that in your hand? Don’t tell me that’s the male lead’s head?
My brother won the war.

ML and F!MC are not Blood-Related siblings, he does not see her as a sister and they weren’t close when they were kids.

She became Ran Romea de Lazia, the daughter of the male lead’s stepmother. A character that she didn't even knew the name of before reincarnating. The Stepmother tormented the male lead, Yustaf, so much that he began to mistrust other women.

Ran tries to change the events that are going to happen, yet their parents and little brother still die.

ML and MC are not blood-related siblings.

She thought she was born with a golden spoon, but it was actually just a gilded spoon?
Once she realized that nothing but ruin awaited, she found a diary foreshadowing the future...

[“What does the empire mean to you?”
After asking, the Crown Prince smiled so very beautifully. And then he killed me.]

Unfortunately, Asili kept coming back to life, killed over and over again. As she relives her deaths, she slowly lost her smile and changed.

Male Leads are all her relatives in someway.

A recluse becoming Queen?! In a contest for the throne with scions of noble families, I’ll do everything in my power to avoid getting embroiled in it!
In the Kingdom of Lindtor, renowned for being governed by a wise ruler, I, Francesca, am the King’s granddaughter?
A homebody who delights in chess and staying indoors. However, in the wake of my grandfather’s sudden demise, it’s revealed in his will that I am a Queen candidate.

MC and ML are not blood-related siblings.

I’ve transmigrated into the world of the BL webtoon where I left my one and only spiteful comment. On top of that, I become the adopted younger sister of my favorite character: the obsessive male lead who is later regretful for his actions, but still dies along with the duke in the end. So, I was determined. Since I have transmigrated into this world, I can’t just stand by and watch my favorite character die.

MC and ML are not blood-related siblings.

Glamourus and Dazzling-Looking MC
The beautiful imperial princess of the Brizina Empire, Kasia Miro del Brizina, is rumoured to be a witch, but she just has one tiny wish. To open a doll shop. In order to make it a reality, she calls in the favor of her stepbrother, Emperor Deon.

Hm hmm this one and the one below looks similar in color and design

MC and ML are distant relatives.

It’s in a martial arts setting…I’m unsure if union between distant relatives is forbidden here? I could be wrong.

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

LmaOoooo they’re ALL crazy possessive of Each Other LOL

Inuwashi Momo, a lovely and delicate girl living with her handsome brothers who dearly take care of her since their parents death. Of course, she loves them... maybe too much...
In order to protect her kingdom, Momo acts lovely, puts GPS to track them and does whatever it takes to get rid of girls interested in her brothers like a soldier. But one day, Momo meets a boy who wants to overthrow her perfect kingdom !

Incest Undertone

They are all hot and SAVAGE. She is VERY unlike your everyday WEAK-minded, “strong” female lead, NAIIIVVEE, justice-saving fools. True to her title, an actual fucking villainess, embracing the madness. I really recommend, thumbs up. 5 out of 5 stars
However her brothers have a sister complex.

They are pseudo-first cousins, once removed.

Takatsukasa Hikaru ends up under the care of a young calligrapher, Kuzukiri Kiyomizu, after her father dies.

So far;
1. Takatsukasa Hikaru, President Takatsukasa’s daughter.
2. Kuzukiri Kiyomizu, the son of Hikaru’s great aunt, her father’s aunt. (Hikaru’s father’s aunt’s son) (But really Kiyo is the son from her great aunt’s LOVER’S Side)
7 years age gap, DAMN, A KISS AT JUST CHAPTER 1?