Overlord (WN) - Volume 2 Chapter 7 part1

As childhood sweethearts, they were made to engage under the manipulations of their families. It involved having to to live in the same room and sleep together.

One night, she is accidentally made drunk, and in his delirium, he kisses her only to realize he enjoys it. From time to time, he would sneak a kiss on her, but his “crime” is eventually discovered in an accident. After being accused by her, he says with a smile, “You are my wife, why can’t I kiss you?”

The two people’s daily routine is full of bickering and mutual discrediting of each other.

Although he claims to disparage, he actually cares intensely about her. He feels crazily jealous when she is close to other men, to the point of tying her to his side, so that she becomes exclusively his.

- Description from web

After seeking pleasure in the nightclub and a night of romance, he discovered there’s a seed in his stomach;

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

[Slow Burn]

Died as a virgin. Reincarnated with a big rod.

Ding!

[You have acquired the Bad Luck system. The God of death sympathized with you for dying pathetically. You have been gifted with a divine rod. Your meat rod is the tool you would use to rise to the top. Grow faster and stronger to conquer all the beauties and face the tribulations of the world]

“Eh, where am I? What! A Bad Luck system!” Trying to comprehend what had just occurred as strange characters appeared in his view. Vincent tried to talk and move his body but he realized that he was In the body of a baby.

Vincent Oswald, a popular hentai writer and tentacles creator died as a virgin in a tragic accident and reincarnated into another world.

A dog-eat-dog world, a world of cruelness, a world where you could have your head rolling for a plate of meat soup.

Let's see how Vincent survives in this cruel world and strives for the top as a boy that was born with a silver spoon.

Elves + Demons + Vampires + Yandere + Op characters and so many fantasizing things.

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Note: No NTR towards Mc.

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The MC acts naive and annoying in the early 30s chapters. After that, I can guarantee you a lustful, action-packed piece of work...