MTL - Godly Empress Doctor - ~ Promise me three things

In the middle of a deserted island, a small boy wakes up with two sets of memories: one from his few years of life and the other from a man who lived to adulthood and achieved great things. When he least expected it, a powerful master appeared on the island and took him in as a disciple, revealing a shocking fact: magic exists in that world, and, thanks to it, humanity managed to conquer the galaxy.

At first, when he learned that he was forced to go to many different routine worlds and be reborn into all kinds of cannon fodder, he was against it.

Because villains usually all only have a moment of satisfaction, the endings of cannon fodder are also frequently quite miserable.

But the man who gave him the system told him that this system not only has all types of powerful functions, but he can also break the routine lives of the cannon fodder. If he achieves this satisfactorily for each world, he can even become a god.

He’s already experienced over a thousand reincarnations, but hasn’t yet been a god. Since it sounds pretty great, why not just try it out.

From that moment on, he began the irreversible path of tyrannically oppressing people, while conveniently tearing open those white moonlights and so-called righteous people’s hypocritical masks.

His goal: wearing the villain’s role to walk other people’s righteous paths, leaving them no path to follow.

- Description from novelupdates

She was reborn in the 1970s, when there were no mobile phones or TVs, people lived in poverty and marriages were arranged by families. He, the wealthy and powerful head of the regiment, who governed the local army, helped her join the army so that her family would no longer be bullied and could live a good life. And Suddenly, he proposed marraiage to her...

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

- Description from Novelupdates