How can I have a heart of a demonic god in my body?! - Chapter 46 - 00 Spiritual Secret Technique

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.

Betrayed. Ridiculed. Killed.That was my past life.I trusted the wrong people, and they buried me for it. But fate wasn’t done with me yet. When I opened my eyes again, it wasn’t in my old body—it was in a world overrun by the undead. And this time, I was one of them.A fucking zombie!But I’m not like the others. I think. I feel. I remember.What’s this voice in my head?[Welcome to the Silent Requiem System!]The system feeds me power, unlocking missions and skill buried within this body. I have one goal: rise in rank, take control, and make sure no one ever tramples me again.The humans I move with have no idea what I really am. To them, I’m just another survivor, clawing my way to the top. But in battle, I use my abilities in secret—manipulating the undead, eliminating threats, and turning every fight in my favor.But rumors are spreading. There’s talk of an undead hiding among them, unseen and unstoppable. If they find out the truth, they’ll hunt me down like a monster.And my past? It’s here too. The people who betrayed me in my last life are standing right beside me, unaware of who I am. But I remember them. They turned on me once—I won’t give them the chance to do it again.Then there’s him. The commander of the city, sharp-eyed and ruthless. He’s watching me too closely, asking too many questions. If he figures out the truth, I’ll have to make a choice: eliminate him, outplay him… or pull him into my trap before he can destroy me.Because in this world, power is the only thing that matters. And this time, I refuse to be at the bottom.***“How did you survive when everyone else died?”I guess death just didn’t want me.“Why do the zombies ignore you?”Maybe I just have a face they don’t like.“You were just a nobody yesterday—how are you suddenly so strong?”Hard work, luck… and a little bit of hex.“Why do I feel like I've seen you somewhere before?”Déjà vu’s a funny thing, isn’t it?“What are you?”Wouldn’t you like to know?

To save a doomed fantasy world, I killed the main characters, then destroyed the game world, and fell into another timeline as the academy's top seat and rival to the protagonist.Now, I'm trying to save the world and steer it towards a better ending…But I'm the final boss.

Reborn into a world shaped by ashen storms, brutal blizzards, and sword-wielding sorcerers, Arilyn must forge his own path.Magic is abundant, spread far and wide by the realm-spanning Grand Spell. Even in the frail body of a newborn, Arilyn is rewarded with attributes, points, and power simply for stubborn hard work. Yet not everything is as bright as it seems. Legends walk the land, and the Blight Lords are hell-bent on resurrecting the Old God.None of this should have mattered to him, living on the fringe of the empire—until strange rumblings rise from the heart of the Candor Mountains.What to Expect: • [Reincarnation, but the MC does not retain any memory of his past in the beginning.]• [Slice of Life, Crafting, Spellcrafting, Training, Slow burn, Weak to Strong, and silly things] • [LitRPG elements, Detailed Magic system, Greek/Roman Empire-esque settings]• [Magic Academy, Eventually]• [Beast Companion?] • [No harem]