MTL - It’s Obviously a Life Skill, But You Developed It Into a Magical Skill - Chapter 142v100 Chef Ding Level 6! An acquaintance is here (refined product, thank you)

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.

Her step-sister just died three months ago. Now, she insists on marrying Chu Lui, who is supposed to be her future brother-in-law, the mind behind the Chu Enterprise. The world is sure that she, the new bride-to-be, had caused her step-sister’s death in order to seduce him.

A top hacker was chosen by the Lord God to be reborn into countless worlds, always as an expendable villain.

With no free will, every world became a dead end. Every one of his lives ended tragically.

Finally, after wresting control of the Villain System, this ace hacker decided to enact revenge. Even if his very bones were rotten, he’d choose to occupy the very heights of morality, if only on the surface.

Thus, he would change his fate as an abused slag.

- Description from novelupdates

Deceived into marriage, exploited for a lifetime as a nanny without pay, and finally beaten to death by her adoptive mother in front of her adoptive father's sickbed, Shen Mianmian's miserable life came to an end.When she opened her eyes again, she found herself back at fifteen. Shen Mianmian vowed to escape her past fate, punish her malicious cousin and adoptive mother, but accidentally shone too brightly in the process.The third-to-last student in school suddenly rose to the top, becoming the candidate fought over by prestigious universities, causing a sensation among all the teachers and students...While others were busy studying, Shen Mianmian was busy starting small businesses to make money...While others were preparing for the college entrance exams, Shen Mianmian purchased the two most notorious haunted houses in Beijing in one go... becoming an oddity in everyone's eyes, they mocked her that even if she had the fortune to buy them, she might not have the life to live in them.While others graduated and were busy looking for jobs, the haunted properties purchased by Shen Mianmian were requisitioned by the government, earning her a considerable amount of demolition compensation.Those who had mocked her couldn't help but slap themselves twice... inquiring everywhere where there might be haunted houses for sale.Shen Mianmian, originally needing to borrow money for tuition fees, used the demolition funds and leveraged her rebirth advantage to buy a suitable plot of land and built a rental building, transforming into a Beijing's wealthiest and most prosperous landlady...One day, Shen Mianmian, carrying a bag of keys and having just collected the rent, was dragged to the Civil Affairs Bureau.“Shen Mianmian, it's time for you to pay back what you owe me.”