I reincarnated as an elf .......and married the yandere villainess. - Chapter 19:Customs

Arthur, a young man in his twenties, suddenly finds himself inside the world of the novel “The Rise of the Sovereign Sword,” a famous story he had been reading in his previous life. He doesn’t understand how he ended up in this world, but he soon discovers that he has been installed as the ruler of a poor and small barony due to a serious misunderstanding—everyone believed he was the illegitimate son of the Duke, a man notorious for his terrible reputation and corrupt deeds.Afraid of having his true identity as an impostor exposed, Arthur finds himself in a difficult predicament.As he tries to find a solution to his dilemma, he faces daily problems stemming from this world’s extreme backwardness in terms of economy, technology, and governance. However, instead of surrendering, he decides to use the knowledge from the world he came from to change this regressive situation.Arthur attempts to spread civilization and progress in his society, fighting against outdated traditions and establishing new concepts that will improve and advance people’s lives.

A recurring nightmare afflicted Khan's nights since the Second Impact. His dreams replayed the scenes of the crash of the Nak's spaceship, an alien race that the humans had defeated five hundred years ago.

In a national key university in the 21st century, she is soft and cute, but she is actually an agent trained by a certain organization since she was a child. She just went out on a mission and was about to take the graduation exam when she came back. Taking a nap, I accidentally traveled to the ancient times in the sky.

Not only did she lose her beautiful appearance and modern high-tech, but she also became an abandoned woman. She said that it was exactly what I wanted.

From then on, the soft girl raised cubs to farm, and she had to accept extreme harassment from time to time.

She said: life is boring, the best is very good

The male protagonist said: My family has the best products, and it happens that my son is short of a mother. I don’t know why the little lady wants to come to my house and live with a buddy?

The hostess went home and asked her beloved daughter: Baby, is there anything you lack?

The baby replied: I lack a father

All right, if there is a lack of a mother over there, and a lack of a father here, then let’s go together, but, it’s not me, but you.

The male protagonist agreed without hesitation: “Little lady, please allow me a few days, and I will go home and break off the relationship.”

One is the male protagonist who broke up with his family and brought a boy, and the other is the second-cousin who was abandoned by her in-laws and brought a daughter

The two form a family for their children, pretending to be a fake couple to live together, and whether they can become a real couple in the end, please watch

- Description from novelbuddy

In a world where cruelty reigns and only the ruthless survive, Arthur—a boy born in the gutters of a city ruled by monsters—knows only one truth: power decides fate. Shackled by the past, driven by vengeance, and desperate to carve his own path, he plunges into a brutal struggle for dominance. But as blood stains his hands and the lines between man and beast blur, Arthur stumbles upon something far more dangerous than war—fragments of a life he was never meant to have. A name. A home. A reason to fight beyond survival.But is survival enough, or will he become the very thing he swore to destroy?