MTL - The Life of a Villain Starting From Naruto - Chapter 124 so the answer is

True evil needs no reason to exist.

“All living creatures must die, but I wont. ”

Once known as the most talented and knowledgeable scholar/philosopher across three continents, he basked in the praise and reverence of those around him. However, tragedy struck one fateful night when he bore witness to the cold-blooded murder of his entire family. Driven to madness, he embarked upon the path of power, the path of negative energy, and thus, The Great Demon, Badur, was born.

In a single day, a mountain of corpses were stacked, many of which fell to his blade. However, during his final pursuit of revenge, he met his untimely demise. His soul was extracted and cast into the void, where it would endure eternal suffering.

However, his jouney would not end here……

“What do you desire?”

A grotesque creature floating in the void asked while staring at the bruised and beaten soul of a young man.

[Ding!! Host has received Void grade Treasure]

[Ding!! Goal has been set : Attain True immortality]

A new lease at life is presented

A deal with a Demon filled with resentment

A new journey, a new Dawn

With that the great Demon, Badur is reborn

ps: the book won't progress the way other novels have been progressing. if you don't like a unique development then maybe this isn't the book for you.

After mistakenly contributing all of his attribute points to the drop rate, Xiao Shi found that every time he killed, he would get an item.

Slapping a mosquito to death, drop a pill.

Killing an evil spirit, drop a secret book.

Slashing a martial artist to death, drop the opponent’s cultivation tips.

….

When killing, Xiao Shi was shocked… “How did I become invincible?”

Magic, eastern fantasy, cultivation, scientific technology…

Song Fengwan was dumped by her fiancé, who had been dating her for a year, and an illegitimate daughter appeared out of nowhere to ruin her family.