Sin System: Demonic Harem After Reincarnation

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.

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.

She betrayed him. He vanished. Now he’s back—with silence, power, and a system she never knew existed. Two years ago, Adrian Cole gave Jessica Benson everything—his name, his loyalty, and his love. She gave him lies, a divorce paper, and a broken heart… all for another man. Now, everyone believes Adrian disappeared without a trace. But the truth is darker. After a near-death betrayal, he awakened a Secret System—one that feeds on silence, pain, and precision. He returns with nothing but a quiet fire in his eyes. No explanations. No revenge plans on paper. Just missions, silent upgrades… and a heart growing colder by the day. Jessica? She’s falling apart. The man she left behind is rising—untouchable, unreadable… and more dangerous than ever. But the System knows her secrets. And Adrian’s silence may be the last sound she ever hears.

Atticus, betrayed by his own kingdom, faces the wreckage of a life once held dear. With his wife and unborn child casualties of a dark plot, he's left broken. But the legend of Atticus is just beginning, for Amsodeus, the devil of chaos, grants him a second shot at life, a chance for revenge and the emergence of the Reaper system that helps him get Stronger with the blood of his enemies. ****** Atticus clenched the soldier's neck, his gaze unwavering as he confronted him. A sudden prompt echoed in his mind. "Primal energy detected, absorb?" "Hell yeah," he responded. The soldier in Atticus's grasp unleashed a gut-wrenching scream, red marks enveloping his entire body as his mass dwindled. Atticus felt an insatiable hunger as his body absorbed the energy, leaving the soldier lifeless. Onlookers in the battlefield shuddered as they witnessed Atticus holding his comrade, draining his body mass. It was in this moment that the other soldiers grasped the reason behind his ominous title—the Reaper.

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.

In a world where strength is the only law, Riel Draven was once the most feared warlord — until betrayal led to his brutal death at the hands of those he trusted. But instead of dying, he awakens in the body of a weak, crippled noble… 15 years before his execution. Armed with knowledge of the future and an evolving system that grants him missions, rewards, and punishments, Riel must navigate a treacherous world of power-hungry nobles, secret sects, and legendary beasts. Every decision could alter the future—or doom him to an eternal cycle of rebirth. Will Riel rewrite history and rise as an immortal sovereign, or will fate consume him once more? Power. Betrayal. Revenge. The Tyrant Returns.

When Ethan, a long-time employee at a renowned company, was fired on charges of theft and embezzlement, his life fell apart. Intending to ask for a raise, Ethan instead received a dismissal letter. His misfortune continued when he got a call that his mother was in critical condition and then caught his girlfriend cheating with his own boss. Publicly humiliated, Ethan felt his life hit rock bottom. In his state of chaos, a meteor suddenly fell right next to him, unnoticed by anyone else. From the meteor, Ethan's phone emitted a mysterious system that allowed him to get whatever he wanted by completing missions. Each mission completed not only brought him money but also power that transformed his life.

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.

Sardat Vettel is an errand boy for the Skull Gangster, who always has his pride trampled on. He rose from adversity after getting the Spin System. [Spin system installed! Today's Spin Prize....]

When Arthur was humiliated and beaten, he had only one thing: the system. This system, granted by the Goddess Alice, was not meant to save the world, but rather to build a harem and amass wealth through lewd quests. From intimate touches in the library to breaking into the Immortal realm in other worlds, Arthur had to embrace his deepest desires to reach the pinnacle of power. Arthur must conquer all rivals, Gods, and his creator goddesses, while maintaining the loyalty of his ever-growing harem. Will he become a hero or a monster driven by lust?