Sin System: Demonic Harem After Reincarnation

They tried to kill him on his birthday—just to take all his wealth. All this time, Logan thought he had nothing. But the truth was far more cruel: all the suffering he had endured was the doing of his own uncle, who treated him like trash within the family. On the night he was on the verge of death, a goddess appeared before him. Out of pity, she granted him a system that changed everything—the Multiplier Compensation System. From that moment on, Logan’s life changed. Wealth, power, everything began to grow without limit. He no longer cared about anyone… except for one thing—revenge. He built himself into an existence with infinite wealth, someone no longer controlled by anyone. “Now… you’re begging me?” “This is my ‘kindness’—to atone for all your sins.” And for those who once destroyed him, endless suffering would be the only fitting punishment.

Sanxi, the one last person and the only mortal who can carry the death runes. . . His life changes the moment a supernatural portal opens and gives him access to the world of supernatural creatures. In this magical world, a new system is activated and he must learn to survive while training and gaining magical powers that will help him kill the Lord of the Underworld and save humanity from him.

They burned his name. Betrayed his trust. Left him for dead. But death…didn’t take him. Aiden Vermillion, once mocked as the weakest man in the kingdom, rises from the ashes of betrayal wielding a power ancient enough to terrify the gods. Branded a nobody. Forgotten by history. Hunted by darkness. He returns cloaked in a new name, a new face...And a vengeance that could crack the heavens. With a system bound to his bloodline, an empire to reclaim, and a prophecy written in demon blood, Aiden is no longer just fighting for justice. He’s coming to tear kingdoms apart. To expose traitors. To shatter thrones. Three wives. One sword. Infinite rage. The Lord of Destruction wants the world to burn. But Aiden? He plans to burn Vatou first.

Kael is just trying to survive another day in the Sector Seven Wasteland. With a crushing settlement tax due and the threat of being exiled into the mutant-infested Dead Zone looming over his head, desperation pushes him further into the dangerous, uncharted ruins than ever before. His luck seemingly changes when he unearths a pristine military escape pod containing a mysterious, pulsing black cube. But the wasteland is unforgiving. Ambushed by a terrifying Ravager mutant, Kael is pushed to the brink of death. In his final, bloody moments, the mysterious cube merges with his DNA, activating an ancient Neural Link. Instantly, Kael's world is overlaid with floating blue text. The burning pain vanishes, replaced by explosive, supernaturally enhanced strength and the ability to "level up" by defeating his enemies. He is no longer just prey. However, his newfound power instantly paints a massive target on his back. With a Class-3 Mutant Swarm rapidly descending on his location drawn by the scent of blood , Kael must master his new System, fight through impossible odds, and uncover the buried secrets of the Old World. The hunt has officially begun.

Lost his parents to betrayal and his grandmother to sickness. Eagan was almost left alone in the world with no one to rely on and then he got a system that informed him about the impending doom in his world.

A flower shop owner drowning in debt keeps receiving messages from a number called "The System." When a mysterious woman hints that the invitations are real, Muneer wakes up in a game with six strangers. All of them are good people. All of them need money. The System's first test is simple: work together and everyone wins, or betray each other and only one walks away with the prize.

Title: The Ultimate Tycoon's System Audit Genre: Urban / Drama / System Synopsis For five years, Jin was a loyal "live-in boyfriend," working eighty-hour weeks as a low-level clerk and scrubbing floors to pay off his girlfriend Min-ah’s family debts. But the night he bought an engagement ring, his world shattered. After discovering a secret $3 Billion money-laundering scheme at work, he caught Min-ah in the arms of the billionaire director and boss, Kang Tae-sung. Discarded like trash by the woman he loved, Jin was framed for theft and left to bleed out on a rainy bridge by corporate thugs sent by his boss to silent him. Instead of dying, a freak electrical surge wakes a cold, mechanical power in his mind: The Sovereign Auditor System. With a glowing crimson clock counting down his final 24 hours of life, Jin must audit his betrayers to survive. The rules are simple: the more arrogant his enemies act, the greater the wealth and lifespan Jin gets when he exposes them. Armed with the unstoppable Eye of Truth, Jin launches an absolute counter-strike—climbing from a left-for-dead clerk to a global tycoon who bankrups international shipping syndicates and trillion-dollar shadow banking cartels. Yesterday, they treated him like a dog and left him to die in the rain. Today, he owns their entire lives.

Abandoned, beaten, and left for dead, Victor Draven should have been nothing. But when a mysterious system awakens within him, he inherits the blueprint to an empire worth billions. Each mission rebuilds his power, each step humiliates his enemies, and every choice reshapes the world. From street rat to unstoppable tycoon. Watch him rise. Watch them fall. Victor will make those who spat on him kneel, or break. Welcome to the Empire Reset.

Leo Carter, a once-overlooked university errand boy whose life changes after awakening the Supremacy System. A mysterious system that gives him missions, rewards, money, business knowledge, and strategic advantages. At the beginning, Leo was humiliated constantly at Eastgate University, especially by Marcus Whitmore and the elite students connected to wealthy families. He worked like a servant on campus, wore embarrassing clothes, and was treated as invisible. Everything changed when the System activated. Now he wants Global ascension so nobody in this world will ever look down on him.

Ryan King had it all: billions in the bank, the city’s biggest company, and a beautiful wife. But in one rainy night, he lost everything. Betrayed by his wife and best friend, Ryan was left paralyzed, a prisoner in his own body, forced to listen as they spent his money and plotted his murder. For six months, he was a vegetable. A silent witness to his own destruction. Then, they made a mistake. They killed him. But death wasn't the end. As his heart stopped, a blue light pierced the darkness. [SYSTEM ACTIVATED] [HATRED LEVEL: MAXIMUM] Ryan wakes up with a second chance and a mysterious System that grants him god-like abilities in exchange for one thing: Vengeance. Now, the man who couldn't move a finger can control technology, crush bones, and manipulate the stock market with a thought. He won’t just take back his company; he will burn their world to the ground. They thought he was a broken shell. They are about to find out that they just woke up a monster.