(The protagonist is not human, there is no female lead, and technology is humanity's most powerful weapon! In any era, the protagonist is at the pinnacle of existence and doesn't play the fool!)

A bizarre invasion plunges human civilization into turmoil. As demons and monsters clash with technological might, an ancient evil, the Corrupted Tree, reborn in the endless void, returns to the world in the body of a mortal.

A torrential downpour stirred up the dark clouds, and the crowd knelt respectfully on the ground. Accompanied by the eerie wails of remnant souls, an unparalleled evil force tore through the sky. In the endless void, a pale, vertically-eyed phantom gazed down upon the mortal world!

"Heavenly calamity, divided into three, leads to death and ruin!"

A storm raged, and Xia Yuxuan was surrounded by a suit of skeletal armor. His pale robes fluttered in the wind, and eroded branches extended from his back, emanating a terrifying evil aura!

A calamity shrouds the sky, and an evil god wreaks havoc on the world!

Darkness descends, order collapses, humanity is lost... Wails of death resound, despair and terror descend! Hell is empty, the devils are here. Chen Chong knows that in this broken world, fists are power, and only when fists prevail can reason prevail!

[Ghoul World is complete]

Monster 8 World is in progress.

[Eating + Killing + Torture + Extreme Enjoyment + The entire main cast is devoured + Invincible + Symbiote + Bickering + Multiverse + Evolutionary Flow + No Mary Sue + No Female Lead + Dark Theme]

A top assassin from his past life was brought to the ghoul world by a system. He was given a symbiote called "Riot" at the start. The two shared a body, and fighting and devouring were the only meanings of his existence.

Riot: "Left! Tear him apart! His kagune smells really good!"

Nothingness: "Shut up, you brainless lump of slime, I'm aiming for your vitals."

Riot: "Eat, eat, eat! Eating will make you stronger!"

Void: "If you make any more noise, you won't get to eat anything next time."

(Also, the author doesn't rely on this for a living; it's just something to write in their spare time. 50% of the book's profits will be donated to help others, 20% will be given to fans as gifts, and the remaining 30% will be used to buy themselves a pack of cigarettes. I'll post about the good deeds I do in the comments section, so please don't be so malicious towards the author, thank you.) Also, there's no need to send gifts; just give the author a few likes to urge them to update. I only want to urge them to update.

[Strange revival + restraint system + decisive killing + human body transformation + no CP + world view]

Xie Du was reborn with a mysterious system. He chose a different behavior from his previous life and unexpectedly discovered the true side of the world:

Angels losing their minds; apostles merging with angels; and the filth that controls angels... Does heaven even exist? The truth of the world lies within the ranks of angels.

The first year of cultivating immortals.

Chen Huangpi had a copper-skin and iron-boned body, and was invulnerable to water and fire. Black smoke billowed with every move he made.

The master said that was spiritual energy.

The second year of cultivating immortals.

Chen Huangpi felt extremely itchy, and hundreds of evil eyes broke free from his flesh and blood, emitting malice unscrupulously.

The master said that this was called supernatural power.

After a hundred years of cultivating immortals, Chen Huangpi's eighteen feet were rooted in the dark earth, and his nine heads reached the sky. When he opened his bloody mouth, he could hear obscure and evil sounds.

He called himself the Taoist Master Huangpi.

Chen Huangpi looked up and saw his master sitting in the ninth heaven, his whole body was dark blue, and countless gods, immortals and Buddhas were struggling and wailing in his shadow.

"Master, are we really cultivating immortals?"

In the misty sea fog, on the deck of the ghost ship, Hern Iheroa gazed into the distance, using a brass telescope inlaid with inhuman eyeballs, at a geometrically indefinable outline. He mechanically tore at the rotting fish flesh in his hands, stuffing it into the relatively neat slit in front of his skull, known as the "mouth." At that moment, only two questions occupied Hern's mind. First, when would he find a doctor? Second, what about the remaining 1,278 mouths on his body after he had eaten his fill—"So, doctor, is there... any hope for us?"

The matter that makes up the world we know only accounts for less than 5% of the mass of the entire universe. So where is the other 95% of the universe's mass? What is it like? A soul that travels across time and space accidentally encounters a mysterious and strange shadow world. Tearing apart the bloody and ignorant appearances and dispelling the mysterious and strange fog, evolution and truth unfold before his eyes. P.S.: The original inspiration for this book comes from the American TV series "Stranger Things".

A humble scholar, with bones as thin as feathers, treads the foul wind; his blood, congealed into cinnabar, scorns the Daoist master.

Claws shatter cities and devour the sun and moon; a demonic heart refines the world and scorns the heavens.

The cauldron melts all laws to open a new realm; the sword shatters a thousand sects to reach the summit.

Do not concern yourself with the affairs of good and evil throughout the ages; only a single thought can govern the primordial chaos.

Humanity dwells on a small island called Ignorance in the midst of a dark ocean. This ocean is vast and holds countless secrets, but we should not sail too far or delve too deep. — Lovecraft, The Call of Cthulhu

The sleepless nights engulfed darkness. I ran through the darkness, bloodthirsty monsters howling behind me. Through the thick fog, I seemed to see a faint light. It was a strange power! I had no choice but to throw myself into its arms. With it, perhaps I could survive. Beneath the shroud of fog, a combination of steampunk, witchcraft, and Cthulhu brought about the ultimate midnight revelry. I walked on the edge of darkness, between light and shadow. Nothing could control me, only shadows, everywhere... PS: This is a third-person perspective, and the protagonist is rational and cold.