Biocores: The Legendary Weapon Designer - Chapter 68: The second Sin.

Florentia was reincarnated as the illegitimate child of the richest family in the empire.

An underprivileged prodigy, a cruel, ruthless world, and an epic story of battle and conquest. A young man with an exceptional inheritance leaves the small, rural city from which he hails on a journey to find the girl of his dreams. He defeats countless prodigies, sweeps through all forces that dare to stand in his way, and progresses step by step toward the pinnacle of all the worlds!
“I’m not targeting any gods in particular. All I’m trying to say is that all gods are trash in my eyes!”

- Description from Novelupdates

Eren Idril died as an old, decrepit, and piss-poor adventurer by the maws of a D-Rank monster. He had a lot of unfulfilled dreams and desires that couldn't see the light of the day after the light in his own eyes died down.

But fortunately for him and unfortunately for the world, that wasn't his end. Eren was somehow dived back in time when he was a mere teen, attending Lionheart Academy for adventurers.

When life gives him a second chance, Eren decides to exploit it to its fullest. Experience his vile deeds as he partakes in them without feeling the slightest bit of hesitation.

[Horror Game Developer : My games really aren't that scary!]I hate horror.From the skittering sounds of footsteps racing behind me, to the soft yet unnervingly cold whispers curling around my ears...All of it.I hate it.So much so that I start puking whenever I reach a certain threshold.And yet, I am a Horror Game Developer.A crappy one at that.So, given my lack of ability, I decided to quit.And yet...[Congratulations, you've been selected for the Horror Game Developer System!]Nope, I don't want it.Let me quit.※ Note : Your world might experience some changes. But don't worry! It's part of the game!***An SCP inspired story with its own twist!