From the Heavens Descended an Immortal Sister - Chapter 298 - 393: The Strongest Void Beast in History_1

After announcing it will be discontinuing all service, the internet game ‘Yggdrasil’ shut down… That was the plan, but for some reason, the player character did not log out some time after the server was closed. NPCs start to become sentient. A normal youth who loves gaming in the real world seemed to have been transported into an alternate world along with his guild, becoming the strongest mage with the appearance of a skeleton, Momonga. He leads his guild ‘Ainz Ooal Gown’ towards an unprecedented legendary fantasy adventure!

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

I am Ye Qing. Lucky I found a [Monster Factory] application.

This bunch of super strong monsters are individually comparable to over 100 human beings, and they bring all kinds of skills!

Efficiency? With the skill processing speed +300, you still want to compete?

Precision? *cough, cough* Bring me that legendary dial caliper, let’s show them what absolute precision really mean.

Ye Qing: When, us, men want to be successful, we pull out our wallets.

Monsters: Don’t play those malice games with us. The creation of ultimate machinery is our love and life. These impenetrable bodies are our tools of the trade.

A 20 meter tall, overly buffed, savage looking monsters hold on to a ultimate cutting machine and yelled at the sky: “I am not targeting anyone specifically! Rather I am telling you all that, everything, in front of me and my tools are, nothing, but TRASH!”

- Description from Novelupdates

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.