My Dungeon Life: Rise of the Slave Harem - Chapter 94

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.

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…

…

Today, yet again, I’m at the gacha wheel.

“Did I get a 5-star?!”

In this life, I will live for you.

Yue Xiuzhi played the most hated villain in Q*dian for the sake of resurrection—— The master of the protagonist, who abused the protagonist in various ways in the early stage, was finally killed, but he couldn’t go back.

In order to compensate, the system sent him to the second world of this book, where Little Protagonist was only five years old, and Yue Xiuzhi could OOC casually, ignoring any plot.

So, Yue Xiuzhi happily spoiled the wolf cub.

But he didn’t know that the protagonist of the body world who was abused by him in various ways would occasionally possess the Little Protagonist in this world.

This Son of Heaven was surprised to find that the hypocrite master, whom he hated so much, actually pampered the “self” of this world.

He had been tortured in various ways because of his demonic nature, but the master of this world, after discovering that “he” in this world had demonic nature, said: “Demon qi and spiritual qi are just a form of energy. Spiritual cultivation and demonic cultivation are just a way of pursuing the Dao. In spiritual cultivation, there are people with human faces and animal hearts, and there are demons who have clear grievances.”

He became jealous but did not want to admit it, in the step by step fall, he found out that the person who died for him, his best friend, his first love, and his most hateful master, were actually the same person!

- Description from Novelupdates