Three Sins Against Heaven - Chapter 5 – Have a devil in one’s heart

Ernest Quelt, the alchemist renowned for his unparalleled mastery of alchemy, has perished.But his death wasn't a noble sacrifice in battle, nor the result of a failed expedition—it was a betrayal. The very comrades he trusted most turned on him, driven by envy of his growing power.Yet fate wasn’t entirely cruel. With his final breath, Ernest's gaze fell upon the tube that contained his greatest achievement: a perfect artificial being known as the Homunculus.More than just a vessel resembling a human, this creation harbored the power of a catastrophic beast—one that had once nearly brought the world to ruin.

Demien Walter died on a rain-soaked road in 2025, his career a footnote in football history.A journeyman midfielder whose playing days ended in obscurity. A tactical obsessive whose notebooks gathered dust. A coach whose first opportunity came too late and ended too soon.Until he opened his eyes in 2003, inhabiting the body of Yves Laurent — head coach of AS Monaco.Now, armed with twenty years of football knowledge from a future that hasn't happened yet, Demien faces the ultimate tactical challenge: rewriting history from the touchline.He knows which players will become legends. He remembers which matches change careers. He's witnessed the tactical revolutions that transformed the game.Monaco is just the beginning. With each victory, each tactical masterclass, each deviation from the timeline he remembers, Demien alters football's destiny. From the Champions League's bright lights to World Cup glory, from Milan to Madrid to Manchester, his journey will reshape the beautiful game in ways no one could predict.No cheat codes. No supernatural abilities. No second chances.Just a man with future knowledge in a past world, attempting to build a legacy that even death couldn't erase.Football isn't just played on the pitch. It's won in the mind.And Demien Walter's mind has already lived through everything that's about to happen.

I transmigrated into a novel and became the villainess, Serina who comes from the noble Ducal Melford family.

As a well-to-do character, I tried to mind my own business, but the story had other ideas. A self-proclaimed mother brought back a boy – the duke’s heir and a genius wizard – intent on brainwashing and blackening him.

The contents of brainwashing are two things:

1. Obey our family.

2. And fall in love with Serina.

Thanks to that, the brainwashed twisted yandere is obsessed with me…

I can’t do this. I have to undo the twisted character’s brainwashing!

By the way, what’s this situation?

“Now that the brainwashing is gone, I’ll do as I please. So Serina, please, let’s do our best.”

I’ve solved his brainwashing… but why does he seem even crazier than before—

Did I make a mistake?

Fate, a gatekeeper who had been working for the castle, is beset by a few burdens.