Runeblade - Chapter 326 B3 317: Sanctuary, pt. 5

On that fateful day, a voice in the sky told everyone on Earth that the world they called home has just been part of some sort of simulation.

Tragically killed in a cruel world, Rey awakens in the body of a young noble named Theo Von Caerstellar—in a foreign land on the brink of chaos.Gifted with extraordinary intelligence, Theo vows to protect his family and exact revenge on the treacherous nobility. This marks the beginning of a brilliant young lord’s journey—one that will shake the very foundations of aristocracy!

What got summoned was the world’s strongest sociopath.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates