One-Click Upgrade: Super Decomposition System - Chapter 487

On modern-day Earth, An Lin seems to have been abandoned by God.
When his father suddenly disappears, An Lin is left with his father’s immense debt, putting his life at risk.
After being forced to a rooftop by his pursuing creditors, An Lin is unexpectedly swept off his feet and brought to the ground safely.

After learning that he was saved by an Immortal, An Lin is gifted, seemingly out of pure generosity, the ‘God Of War System,’ and a pass to a new realm.
Follow An Lin as he experiences a whole new world of legends, meets many new friends, acquires legendary weapons and tools, and starts on his path of becoming a powerful cultivator. There is never a dull time in An Lin’s new life with his ‘great’ new system!

- Description from Novelupdates

The readers of this harsh world had no interest in the villain’s story. But why didn’t they know? It was also the era of random possession meta.

I’ve become the ultimate crafting all-master character in a game world, excelling at everything except combat.And now, I am the only one who can save this Northern Grand Duchy.

[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...