Sin System: Demonic Harem After Reincarnation

“Elias Rowan.” “You have been chosen as the successor of the Monarch Crown.” “The Crown binds wealth, influence, and hidden authority across nations to its bearer.” “Those tied to the Crown yield to your command.” “For every ten billion dollars you spend, the Crown ascends unlocking new tiers of sovereignty, protection, and reach.” “Spend and your rule strengthens.” Elias’s phone buzzed in his pocket. ALERT: +$10,000,000,000.00 Ten billion dollars. The Halstons allowed their daughter to marry Elias Rowan because his family was filthy rich, but when the Rowan family lost everything, Elias became filth in their eyes and was treated with complete disdain. Tired of being connected to a “loser,” they crafted a grand plan to eliminate him and marry their daughter off to someone else. But fate had other plans. At the brink of death, after losing all hope, Elias came into contact with the Monarch Crown System. Now, watch as Elias rises and reduces those who once mistreated him to nothing.

Theodore is a young man who dreams of making his loved ones happy. But who would have thought that making someone happy would be so difficult? Not only that, but what if everyone around him wasn't a normal human, including him?

Victor, the CEO of Lawen Innovate Group, was cruelly murdered by his family in secret. He comes back to life in the body of his company's office boy while Lawen Innovate Group being taken to bankruptcy threat, his wife having an affair with his brother, and trusted people betraying him. Using the Ultimate Money Revenge system, Victor must complete missions and build a business empire for the sake of revenge. Victor is thrown to the lowest point while living life as Benyard: humiliated, tortured, getting unfair treatment. Only to return to his original body that in danger of dying in the hospital. How does Victor make them get down on their knee and pay for their deeds? * SYSTEM: CONGRATULATIONS, USER! YOU HAVE FOUGHT FOR TWENTY-SEVEN YEARS OF YOUR LIFE. NOW YOU ARE ON THE VERGE OF DEATH SYSTEM: THIS IS THE LAST OPTION, DO YOU WANT TO ACTIVATE THE SYSTEM AND FIGHT FOR YOUR LIFE AGAIN? [YES] [NO]

Raymond Cooper was just a spy—until the skies split open. Alien invaders, the Morphidons, shattered Earth in a single night, and Ray became their top target. A shard of alien tech changed everything, fusing with his body to unlock the Apex Predator System—a power that transformed him from an ordinary man into humanity’s ultimate weapon. Thrust into an alien world to evolve or die, Ray returned to find Earth unrecognizable, its survivors waging a desperate war against extinction. Now, armed with powers he barely understands, hunted by galactic forces, and driven by the promise of survival, Ray must rise as humanity’s last hope—or see his world consumed. This is the story of a man who became a legend. This is the Apex Predator System

Drax was betrayed by his wife and his soul swapped with a useless son-in-law. What happens when he's stuck in his new world?

Raihan's love confession to his dream girl ends with a deafening rejection, followed by soul-crushing laughter in the middle of campus. At his lowest point, the Deathly Cringe System activates, demanding he accumulate "cringe points" by performing a series of the most awkward public acts. From stuttering to strangers to becoming a living campus meme, Raihan is forced to face his greatest fears for these absurd missions. Each "embarrassing mission" gradually dulls his shyness, builds courage, and even uncovers unexpected potential within him. But what is the true purpose of this cruel system? And is Raihan ready to confront the greatest trauma that has bound him in the past, to complete all this madness? An absurd journey towards self-acceptance, proving that sometimes, shame can be the key to true strength... and perhaps, unexpected love.

Williams had nothing. No home. No family who wanted him. No future. Then a secret System appeared in his mind and gave him a chance. Every quest brought money and small skills. Every step made new enemies. His cousin wants the family trust. A rich man named Harlan wants the whole company. A restaurant manager wants revenge. Williams only wants to protect the people who showed him kindness and take back what his parents left him. But the System never makes life easy. One wrong move and he loses everything again.

“You forced me to drink, remember?” Ethan said, sitting up and buttoning his shirt. “You, your friends, and my secretary. All working together like a drunken conspiracy.” Celeste clutched her clothes against her chest, slipping them on in a frenzy. “This is a nightmare. We didn’t even wear protection. Oh god... I don’t even know your name!” ***** Ethan Grey a self-made business mogul who once walked the halls of school as a forgotten nobody never expected a one-night encounter to spiral into a personal and corporate storm. The next day after she mistook him for her Uber driver and humiliated him, Ethan walked into a high-stakes board meeting and watched Celeste’s confidence crack when she realized the truth, he was the largest stake investor in her family’s company… the one teetering on bankruptcy. But the day’s shocks weren’t over. That very night, at a formal dinner between their families, Ethan learned the final twist: Celeste Aldridge wasn’t just another business deal. She was his fiancée.

Jason, a destitute student grappling with the harsh realities of life, is left shattered when his girlfriend callously abandons him for a notorious playboy. Despite Jason's unwavering devotion and genuine affection, he finds himself powerless against her betrayal. In the depths of his despair, a remarkable phenomenon known as "the system" unexpectedly emerges, transforming Jason's existence in an instant. Suddenly catapulted from poverty to opulence, Jason seizes the opportunity to enact retribution against those who have wronged him, empowered by newfound wealth and influence. With the tables turned, Jason embarks on a journey of vengeance, determined to right the injustices he has endured. Yet, as he navigates this newfound world of privilege and opportunity, Jason soon realizes that the path to redemption is fraught with unforeseen challenges and moral dilemmas. Will he succumb to the temptations of his newfound status, or will he emerge victorious, proving that true wealth lies not in material possessions, but in the integrity of one's character?

After suffering from a tragic accident, Theo gets transmigrated into a new world of magic. He must now triumph over other geniuses and rise to the peak. . . . I retain copyright to the book cover