After an Infinite Flow Player Retires - Chapter 1

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

Caelith doesn't want too much in life, a clean home, a happy mother, and maybe a girlfriend. Raised in the Stormont manner, one of the highest ranking noble household in the kingdom, he grew up a bastard, mistreated and abused by the main lineage.At the tender age of sixteen nobles undergo a divine ceremony, receiving the opportunity to be blessed by the gods however he receives Nothing.Caelith struggles in this world but at the end of the day, He is Nobody, and he has Nothing.

Non-tangible cultural heritage embroidery successor Yi Chichi's soul travels to the era and possesses a little pity with the same name.Father is scummy and stepmother is toxic?Yi Chichi says she is good at using poison to counter poison.Still have to give up her job to substitute for her step-sister to go to the countryside?!Yi Chichi says dream on, good sisters must share fortunes and hardships together.Sold the job, kept the money for herself, and sends her step-sister to the Northwest!Moral coercion?Yi Chichi sneers, as long as I have no morals, others can never coerce me!Someone causing trouble?I've already said I'm a poisonous person, why don't they listen to advice?As for a certain handsome young man...Sending you a pair of mandarin ducks flying wing to wing!What, you also want a pair of phoenixes flying together?!

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.