A Hentai System in the World of Danmachi - Chapter 175 - 174 - Kidnapped by Loki.

A young juvenile’s dantian was sealed since childhood. He can learn all elementary laws and master all martial art techniques. Various Kings strive to reach the heavens, new warlords rise together simultaneously, great races stand with thousands of numbers. From the moment that youth awakens, Everyone will shiver in his presence…….Humans unfair to ME, millions of corpses on the ground.

Death is sometimes not the end!
Dead prison!
This is a magical prison. It has the ability to draw the souls of the dead people of the world, and it also enables people to gain the ability of the souls of the dead.
When Qin Song woke up, he was shocked to find that he had come to the world of One Piece, and even more surprised that he found a prison in his body…..

- Description from Uukanshu

The reborn Prince Hechingen of the Swabian branch of the Hohenzollern family, sees the situation in Europe, and the war is about to start, so Europe doesn’t wait. Enclosure in East Africa, immigration development, and agricultural foundation, step by step, with the help of the crisis to achieve industrialization.

- Description from novelbuddy

Achieving the power to create virtual worlds.

To expand his world, he needs to devour other worlds.

As such, the world ushered in the most greedy, sly and terrifying existence in the world ——— The Gamer

- Description from Novelupdates