Netherworld Investigator - Chapter 490

After being betrayed and killed by his own brother, 17-year-old orphan Elias Black is given a second chance—by a mysterious, demonic entity. Reborn with the “Devil’s System,” he must now collect souls, gain abilities, and exact revenge on those who ruined him.But each power comes with a cost—and the devil never makes a deal without expecting something in return.As Elias grows stronger, unlocking deadly skills and forming uneasy alliances, he faces an even darker truth: his rebirth is part of a much bigger, bloodier plan.

The chronicle of a swotter reincarnated as a muscle brain, aspiring to be a magician!Synopsis——I, who had always longed for the world of sword and magic, found myself reincarnated into another world. But wait, why the hell was the new world just as academically focused as the last.……Whatever, what matter was I was in the world of magic.Reincarnated I was, I strived to live like the wind, free and whimsical while working hard for the elite course but a shocking twist was awaiting for me—What, I don’t have a talent for magic? I only have the talent for Body-Strengthening magic (musclebrain)?No, Impossible, absurd! I am obviously from the sage clique!No matter what, I will not be bound to the competitive society in this life! With unwavering determination, I set out on a quest to discover how I could become a mage at the prestigious academy in the royal capital. But little did I know, my talent in Body-Strengthening magic was a double-edged sword, leading to misunderstandings and an ever-escalating series of mishaps……However my will is unshaken! I will absolutely live the way I want in this life!

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- Description from Novelupdates

Lynn embarks on a fantastical journey to a realm reminiscent of medieval Europe, yet infused with extraordinary magical abilities. Here, the very fabric of reality is governed by the enigmatic theory of magic, which harnesses and manipulates fundamental particles.

In this world, wizards, who are essentially scientific spell casters, find themselves locked in a relentless battle against the oppressive Church.

However, when Lynn arrives, a harbinger of an otherworldly Renaissance, the tides of change are set in motion, unveiling a thrilling tale of discovery, intrigue, and the struggle for enlightenment.