Summoner: Monster Girl Harem! - Chapter 157 28: A Black Dragon’s Lust Part - 1[R18]

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.

The leaves of the chess game beside Lanke, and there is no one playing chess among the old trees
Xing caused Tian Yuan’s first son, and then looked back at the vast mountains and seas
When he woke up, Ji Yuan became a half-blind beggar in a dilapidated mountain temple.
A real person has a sword and a magic stick has a mouth, which is the foundation for Ji Yuan to settle down in this terrifying world.

- Description from novelbuddy

Ysavel, an aspiring writer, wakes up one day inside the world of her own novel. She thought it's those typical transmigration story she have read. However, she was shock when she discovers that she's been cast as the villainess in her own story.

“DON'T TELL ME I BECOME THE VILLAINESS OF MY OWN STORY?!”

Shocked and dismayed, she realizes that the only way to return to the real world is to live out her role in the story. Initially, she accepts this fate, but things take an unexpected turn when the characters start deviating from the script.

“I don't want another Queen. Youare the only one I want as my Queen, Csille.” Prince Fraser whispered.

The male lead, who was expected to be annoyed by her constant pestering, instead becomes affectionate and attached to her.

“It's inevitable, Lady Lauretré. You will still be the Queen, so I don't see any harm in what I said. Besides, I doubt the King or even the Crown Prince would be willing to change their minds about your engagement.”

The female lead, who was supposed to separate the male lead from her, begins to play matchmaker between the male lead and the villainess.

What should she do? She couldn't get back to the real world if she didn't finished the story as the villainess. But how can she finished it if the two leads are not following the script? Help!!!

Qiao Nan: Crap! I am your biological daughter, yet I am treated as if I was picked up from the streets. In fact, you treat me worse than that!

Mother Qiao: Qiao Nan, you are not as pretty or smart as your elder sister. You are not as blessed as her. You have no right to study, marry, or to have your happiness!

Qiao Nan: Why am I not allowed to study, marry, or to seek my happiness? I will find a man right now and marry him!

Qiao Nan is dumbstruck upon discovering that the man right beside her is a powerful figure in the quad—the person who has the most promising prospects to be the future Chief.

Qiao Nan stares at the well-built man in front of her. He has firm abs and cold, chilling eyes. She swallows the lump in her throat as she says her greetings, “Good Morning, Chief!”

- Description from Novelupdates