Tensei Shitara Slime Datta Ken (WN) - Chapter 26: New Abilities

God: I shall bestow the Saintess upon you.
Pope: W- wait a moment! This is a boy!
God: That is the Saintess.
Pope: ??????

And just like that, the Saintess was raised by the church for fifteen years without any questions asked…

- Description from Novelupdates

Prince Renji is betrayed on his coronation day and exiled so his stepbrother can ascend the throne. in the forest he meets the succubus queen who offfers him power to courrpt women and turn them to succubi for him.With this army he vows to take revenge on all who betrayed him

A century after the Great Cataclysm, a brand new profession was born. They control iron, copper, phosphorus, gold, silicon, carbon...Gao Neng has awakened a sacrifice system and the first task he received is to sacrifice the most gifted girl in the military. The reward will be a shocking increase in his talent : Iron 100%, Copper 100%, Tin 100%, Silver 100%, Gold 100%, Phosphorus 100%, Sulfur 100%, Silicon 100%...

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 powerful enemies by 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.