The Protagonist System - 80 The Gauntlet

He went from an ordinary student to a god-level master in manufacturing.
Continuously progressing, processing range from hundreds of meters to tens of atoms, processing precision from microns to nanometers to atoms and molecules, everything was possible.
Wassenaar Accord? The embargo against China? What we have banned are technologies that China doesn’t care much about. Most of the member states have to import technology from China, shouldn’t the member states have a meeting to discuss and bring in China as well?
Forbidden chip sales? Is there a mistake? We barely managed to maintain our low-end market with a large amount of subsidies, it’s already good enough that China didn’t initiate an anti-dumping investigation. President, are you sick?
Hmm, it seems like living cells can be processed precisely as well. Do you need to refine the cancer cells that you are spreading out?

- Description from Novelupdates

Joseph Knox, one of the most prolific and well-known serial killers on the planet.A person considered so demented and manic that even trying to reason with him was believed to be a waste of time. A man so far gone that he seemingly didn't deserve any pity even on his deathbed.So why? Why would a man like him receive a second chance? And why did the world around him seem so familiar?Disclaimer: AU when it comes to some parts of Madara's plan(I'll try to make it make sense at least), and aliens don't exist in this world

Gary Smith arrived in a peculiar world of beastmasters, where an ancient taboo was reborn from the depth of time, and an evil god was lurking.In this world, birds and beasts, rivers and mountains, even elements could spawn spiritual power and turn into pet beasts. Among them, the powerful ones became ecological niches by themselves, radiating secret realm ecosystems such as the Yellow Spring, Skeleton Kingdom, Succubus Nest, and Kingdom of the Sky Tree, nurturing countless followers.The beastmasters make contracts with the pet beasts, nurture them, and control the spiritual power.After witnessing the “Taboo Sun” event, Gary Smith obtained the ability to extract materials from everything in the world and compile “Secret Food”.Through the Evolutionary Secret Food, the combination of “The Shattered Dusk World” + “Ancient Dragon’s Dead Egg” results in the Feast of the End. When the pet beast consumes it, it evolves into the Dusk Dragon God. The Dusk Domain erodes the world, turning into the God at the end of time.The Skill Secret Food allows the pet beasts to plunder skills from everything, becoming omniscient and omnipotent. The Sacrificial Secret Food snatches the taboo time, sacrifices the ancient beings, and blasphemes against the gods.His style of beast control also started to become peculiar.There is the Spider Shadow that devours ancient dragons and weaves dreams of all lives with its threads, the Red Master that pollutes the multiverse, and the Devourer of the Realms, who consumes worlds...In response to this, he explained, “My pet beasts are just a bit peculiar. They really are not evil gods!”

One day, I was summoned to this world.