Seven Deadly Sins System - Chapter 11: Late Night Visitor (R18+)

The rule had always been this way: the strong over the weak, the rich over the poor. Mark knew this, he'd even experienced it.After his boss fired him for discovering the affair with his girlfriend (who also worked at their small gaming company), Mark vowed never to be humiliated like that again. He wanted to rise above everyone, to become the world's top player, the one who made the rules and decided everyone's fate. But that was wishful thinking. He was just a heavyset, nerdy guy with some programming skills and a large appetite. What else did he have going for him?Hit hard by this reality, jobless and dumped, Mark withdrew into gaming, which also became his source of income. One day, after leaving a bad review for a game he played and streamed, he received a strange reply from the game's creator. Suddenly, Mark found himself transported to Aetherium, the world of that same game, as Magnus Lancaster, the young lord of a crumbling territory.Now, with this new beginning, he vowed never to be weak again, never to leave his fate in someone else's hands.

As he woke up, Wei Xuan realized he returned to the day when the apocalypse had just begun. Wei Xuan, who had a second chance at life, immediately decided: not to go to a survivor base, and not to return to human society, instead, there is only one thing he wants to do now. Find the half-zombie Du Hang, and live with him in the city full of zombies, farming and living together until old age. Wei Xuan, who stayed in the zombie city after being reborn, unexpectedly found out that zombies are not as terrible as humans think…

- Description from Novelupdates

The game spoilers turned out to be fake. The characters I gathered thinking they were heroes are actually all villains. In other words, I accidentally created a villainous organization.

The protagonist, Punk, is a cautious, cold-blooded, and ruthless Mage.

His goal is always his top priority, over feelings or morality. When unnecessary, he doesn’t like to act like pigs to eat tigers; there are almost no life and death struggles, sometimes risky but steady progress. No strong enemy everywhere, Instead, Punk is always a strong enemy of others.

And he has a very keen interest in the secrets and teachings of the Netheril civilization.