No female lead but with a romantic subplot; not a saint or brainless character (as much as possible); villainous male lead.

Beyond the thirty-three heavens, beyond the nine layers of clouds dwell immortals.

Immortals were originally mortals, but the only problem is that mortals lack firm resolve.

Thirty years of human desolation, Cheng Liang only wishes to pursue herself.

[Western fantasy + simulation + half-succubus, half-fox + not invincible + leveling up + dimensional warfare]

Mikoro was born into a world destined to be swallowed by the abyss, and because of his demonic bloodline, he was to be executed upon reaching adulthood.

Fortunately, he obtained the Life Simulator System, which allowed him to escape death time and time again, seize opportunities from the impossible, and finally become the Lord of Eldar and King Slaanesh at the end of the world.

After the first simulation, he saw a glimmer of hope in a seemingly hopeless situation and successfully elevated himself to the ranks of the extraordinary.

After the second simulation, he seized an opportunity amidst the demonic calamity and escaped the Blazing Sun Empire. From then on, he was free to roam the world!

After the third simulation, he established a stronghold in the northern border of the Mountain Kingdom, commanding a large army and many generals, and the region was thriving.

...

After countless simulations, he sat high in the sky, ascended the throne of Slaanesh, and as far as the eye could see was the Demon Kingdom of Ten Thousand Desires.

All thoughts and desires lead to lustful karma, and all sensory experiences ignite the fires of desire.

Endless demons chanted hymns of praise, their decadent sounds resounding throughout countless worlds:

"Sinking into the sea of ​​desire, singing and dancing wildly; "

Unrestrained and unbridled, he fell from sainthood to demonhood;

Salamu abounds, a perpetual celebration!

[Ruthless and decisive] + [No female lead] + [Abusive behavior] + [Villain] + [Multiple worlds]

Yan Bing, a top-tier professional assassin known as the "Puppet Master," transmigrates into the novel "Full House of Love" and becomes a sickly, childless woman.

Starting in hellish difficulty: The yard is full of beasts devouring the last of their kind, yet the world's will still protects you?

System warning: "Directly killing story characters is prohibited, or you will be annihilated by divine lightning!"

Yan Bing laughed: "Why use a knife to kill someone?"

As a result, the style of the courtyard house changed drastically, turning it into a 1960s version of "Final Destination"!

Jia Zhangshi's cursing? A marble, a piece of slippery moss, and a comminuted fracture are just appetizers!

Sha Zhu violently broke down the door? Using leverage to move the coal stove, this pot of boiling cornmeal porridge could easily be used as a full-body mask, right?

A thief trying to break in through a window? Having calculated the wind speed and the point of impact, the rusty nail had been waiting patiently. With one kick, the thief's path was sealed!

Yi Zhonghai's moral blackmail? I heard that rainy nights and leaky electricity go well together, sir. That drop of water on your roof is my death knell for you!

Police searched the entire hospital: "It was all an accident; this is just bad feng shui!"

Yan Bing huddled under the covers, trembling: "Officer, I'm so scared, this courtyard is so eerie..."

Watching those beasts trigger mechanisms one by one out of greed, and suffer the consequences of their own wickedness.

Yan Bing ate the meal with tears in her eyes: "This is no accident! This is clearly the charm of physics!"

This time, no arguing, no bickering, a professional assassin will teach you what it means to be killed by the King of Hell at midnight!

[No female lead] + [Ruthless and vicious] + [Villain] + [Gu worms]

Today marks the eighteenth year since the arrival of the All-People Gu Tour in the world, and it is also the second day since Fang Han was reborn using the [Primordial Gu].

Looking at the familiar blackboard and classroom, Fang Han, who had been driven to his death by his teammates and various forces in his previous life, suddenly understood.

In such a cannibalistic world, you have no background, no resources, no friends, and no one you can trust.

Without robbing? Without cheating? How can one become a strong person?

If I don't choose the path of evil, am I destined to be a good person with a gun pointed at my head?

Why should good people have guns pointed at them?

Should good people suffer endless torment?

Looking at everything familiar in front of him, Fang Han smiled.

The laughter was shrill and manic.

Let whoever wants to be the good guy be it; he's had enough.

......

Imitator's skin + Imitator's flesh + 250 grams of blood-stained velvet + 3 stalks of Life-Giving Grass = Tier 1 [Human Skin Gu]

First-tier Regret Gu + First-tier Chess Gu + White Jade Chess Piece + Black Ice Piece + Sea of ​​Hatred Crystal + Heart of Regret Beast + Chess Wood + Hands of a Skilled Player + Fingers of a Gambling Cheater + Heart of a Regretful Person = The Ninth Most Extraordinary Gu in the World: [Regret Chess Gu]

...

While mastering numerous Gu formulas, he also abandoned the conservative development path of peacefully studying in his previous life and began to steadily move towards the path of a demonic Gu master.

This time, he first killed the classmate who bullied him in his previous life in the game, stole his belongings and quickly rose to power. Then he pretended to save a powerful person in distress, and when the person lowered his guard and turned his back to him, he punched him through the heart and inherited the treasures left by his predecessor.

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.

[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.

[Warhammer + System + Decisive Killing + Infinite Evolution + No Female Lead]

"The Emperor created twenty radiant demigod Primarchs to conquer the daylight of the galaxy."

“And Makado, in order to protect that unspeakable darkness, created Wiz in the deepest part of the laboratory.”

...

Traveling through Warhammer 30,000, he becomes the most dangerous secret experiment of the Imperial Chancellor Macard, the "Prototype Zero" of the Maerorus Guild.

Wiz has no soul, no sense of pain, only a perfect killing body fused with unknown genes and yearning for flesh and blood.

And, a **[Devouring Evolution System]** from the void.

In this despairing universe filled with bombs, chainswords, and warp demons, Wiz doesn't need power armor because his skin is harder than adamantite; he doesn't need bolters because his bone spikes can pierce through Titans.

[Devour]:

Devour the Orc warlord alive—gain [Cell Regeneration] and [Infinite Strength]!

Prey on the Eldar Prophet—Gain [Time Warning] and [Faster Light Nerves]!

Chewing on the Great Demon Nurgle grants [Conceptual-level Plague Immunity] and [Immortality]!

...

At the end of the Great Crusade, the Horus Rebellion broke out, and the galaxy burned.

As the traitorous warlord Horus raised his claws, ready to kill Saint Gilles, the shadows suddenly stirred.

A claw covered in a void carapace caught Horus's heavy blow.

Wiz grinned, revealing fangs, and looked at the shocked Primarchs before him, letting out a hoarse, greedy whisper:

“Praise the Emperor… What a sumptuous buffet this is.”

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?"

[Isekai action anime] + [Sharingan] + [Invincible]

Hao Cang transmigrated into a two-dimensional anime series and became bound to a 'Popularity System'.

If a character's popularity ranking falls below the top ten at the end of the first season, a plot device will be used to force the character 'Haocang' to leave the show.

Those ranked fourth to tenth in popularity will be eligible to participate in the second season.

It ranks third in popularity, with a significant increase in the second season's storyline; conservatively, it could reach 10%.

Ranked number one in popularity, unlock exclusive character background modification privileges.

In order to prevent his character from being killed off prematurely, he had no choice but to constantly gain popularity, exchange for various props, improve his strength, and add more storylines for himself.

Soon, a powerful, imposing, and captivating villain was born.

........

Years later, relying on his own 'efforts' and 'talent,' Hao Cang, who had finally reached the pinnacle of the world, stood with his arms crossed, facing the main characters, and delivered his most powerful message.

"Do you... also want to dance?"

...

P.S.: "Despite being a supporting character, his popularity is excessively high," "The Sharingan in an isekai shonen anime," and "First place in the Uchiha Madara imitation contest."

"Uchiha of the One Piece World," "Marine Admiral," "Smoker's stepsister," "The Celestial Dragons' lifelong nemesis," "Is Sharingan + Ice Release + Devil Fruit a viable combination?" "Ancient Zoan - Snow White Wolf!" "The Navy's peak of handsomeness in 800 years!"

With the aim of hunting down the Celestial Dragons, he used a dual identity to rise through the ranks of the Marine Headquarters, becoming the youngest admiral in history!

Borsalino: Compared to that brat, we're ashamed to be called monsters.

Sakazuki: Although he's an ice-wielding guy like Kuzan, I felt this kid's burning sense of justice!

Kuzan: Compared to that, my fighting style seems incredibly crude.

Sengoku: He will be the future of the navy! A pillar of the navy! (Most importantly, his face boosted his recruitment rate by several points.)

Garp: I have a feeling... this guy will unleash a storm of a great era, just like Roger!

...

Ten years later, the Marineford War.

When the Sharingan's gaze fell upon Marineford...

Allen spoke softly.

"The winners don't care what the world is like, they care about how they make it..."

"And I am the victor!"

"Schrödinger's heroine," "decisive and ruthless," "ruthless and vicious," "arrogant? What kind of young person isn't arrogant?!"

It's time to show the world a fighting style that's no longer suited to this era!