Arifureta Shokugyou de Sekai Saikyou (WN) - Chapter 463

After a cruel betrayal in the hands of people he thought he could trust, Ethan Carter lost everything—his idea, his future, even his life.But when he wakes up fifteen years in the past, he realizes fate has given him a second chance!And this time, he’s not alone.[Ding!][OmniTech System Activated!]With a system guiding him and access to groundbreaking technology decades ahead of its time, Ethan was about to rewrite history!Supercomputers? AI? Quantum processors? Bioengineering? The system provided blueprints to all.Now, armed with the knowledge of the future, Ethan will rise as a tech industry giant, crush his enemies, and build an empire that no one can overthrow!Wealth, power, and revenge—this time, he’s taking it all!

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

Depressed by life, disappointed with relationships, and piles of regrets, just when Shaan was at the end of his rope, his soul was offered another shot at salvation!Starting afresh in an unfamiliar place, by sheer luck, Shaan stumbled upon a treasure that could help him hop between zombie and cultivation worlds.“There is shortage of food and resources in the apocalyptic world?”-“It’s okay, I will ship them from another world.”“You said, a zombie horde is coming?”-“It’s okay, I shall call my undead legion.”Facing countless vicious zombies alone that could bring goosebumps, Shaan stood defiantly with a crazy greed in his eyes.With amazing new powers….Turning his blissful desires into reality, becoming an overlord overnight, and buying to your heart’s content, Shaan’s new life shall be perfect.And if someone stands against his eccentric dream?Then, Shaan is sorry in advance for sending them to the afterlife![No Yuri] [No NTR][The book will slowly introduce the toxic female lead with proper pacing.]