The Simple Life of Killing Demons - Chapter 22Book 11:

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.

I traverse along the pathway of darkness and imagination…

Entering the realm born by human imaginations…

Challenging Harry Potter’s magic, commanding the great Pirates of the Caribbean.

Terminating the Terminator’s strength, tearing apart the Matrix’s Hallucination.

Virus is my slave.

Endurance my inheritance.

Growing and hunting in the boundless universe.

Breaking through boundaries in a mysterious space.

Desiring evil, conspiracy and betrayer. Who can redeem what was already lost?

In a battle of demons, who can leave an immortal legacy?

A declining Trump card, Final evolution!

I’m… on a journey!

We are one!

- Description from Novelupdates

The villainous young master Dark Demon finally recalled the memories of his previous life at the sorting ceremony of the Dueling Academy. He was reborn in a very strange Galgame world.

And he was the ultimate villain in the game, the Demon God of Seven Original Sins!

Superbia、Invidia、Ira、Accidia、Avaritia、Gula、Luxuria！

Once any one of these seven indicators broke through the critical value, he would irreversibly transform into the Demon God!

In the era of Saint Marian, where the demons had been completely destroyed and the demon king had fallen into eternal sleep, no heresy was allowed to survive!

⚠️ WARNING ⚠️THIS NOVEL PARTICIPATED IN WSA 2025!---Nero Vaelheim. A name etched in history as that of a fleeting antagonist, a mere stepping stone for the heroes.But what if the pawn refused to be sacrificed?When a devoted reader is reborn in the body of this doomed villain, he has only one goal: to break the script, rewrite his fate… and bend this world to his own rules.After all, why settle for being an obstacle when you can become the ultimate threat?