Marry A Sweetheart And Get Another Free: President, Please Sign This! - Chapter 4058: third young master, something big has happened!

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

(Warning: This novel has an r18 tag and contains mature content.)Adyr, once a notorious serial killer, met a brutal end and welcomed death as the final judgment for his sins.But he awoke in a parallel Earth, where the rich alter their genes and superhumans are the norm.Believing some unknown force had given him a second chance, Adyr buried the monster within and chose a quiet, normal life.For eighteen years, he lived in poverty with his family, suppressing his urges and forcing himself to be human.Until the day he entered a new VRMMORPG.A game that doesn’t just alter virtual stats but mutates real genes and pushes players toward evolution.And with every evolution, his bloodlust surfaced again, turning him back into the villain he once was.

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

Xzavier was super one of the special forces and then transmigrated into the isekai world of magic. It was full of things he couldn't figure out. The magic, elves, orcs, alchemy... However, even in different worlds, humans were always the same. After all, human nature always remains consistent. He encountered a deadly threat, not from a dangerous environment but from his own kind. Fortunately, he had a military system. He could use the weapons he had always been familiar with.The collision of magic and modern weapons, the fierce confrontation between old and new thoughts, the sinister conspiracy and trickery...How should he survive in the strange world?