Blood Shaper - Chapter 52Book 4:

“Is Fate the excuse of the forsaken, is Free Will the delusion of the chosen?”Such was a question that Xavier, the Demon King, never had the chance to ask himself. As he lay defeated, awaiting his death, he wondered about the wretched life he lived.'The hero who killed me, the one who held the same ambitions as me. We both wanted good for the people, for the world. We are both two sides of the same coin, yet, fate decided that he will be the one the light will shine on.Perhaps it was me too, perhaps it was my karma for flowing the rivers of blood with my sword. But still... It was fate that squashed the humanity in me first!Damn fate, if I had one more chance, I would've lived for myself more, I wouldn't have taken this arbitrary role of being a necessary evil... This world, this game of destiny... It can burn to ashes for all I care.'As he sunk into the cold embrace of death, a certain [REDACTED] heard his dying wish with amusement and cast their die, reversing the wheel of time one last time and going all in on him on a risky gamble with the stakes of their world.

In his first life, Victor was lazy, poor, and the ultimate gambler, but the Goddess of Envy gave him a chance.

[ Die and go back four years into the past to restart your life. ]

Victor lost all hope and killed himself, and so began his second and also the most miserable life.

He became rich and successful but soon his girlfriend betrayed him and took away all his fortune, having decided on a desperate act Victor came up with a plan to avenge himself.

Although his plan was successfully executed, Victor hoped that this time he would die once for all and forget the despair that followed him through his two lifetimes.

Yet as if to deny him of his salvation, he suddenly heard a feminine voice once again, but a different one this time.

[ Goddess of Lust, surprised by your actions, grants you a gift ]

[ Yandere system activated! ]

It was a turning point for Victor.

From now on whether it is a Goddess, a Vampire or a Succubus, no matter who it is I must seduce you or I will surely die this time!

Zhou Yu, a reclusive otaku, who did not like to go out of his house, was one day forced out of his house by a series of unexpected events.

- Description from Novelupdates

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…