Sin System: Demonic Harem After Reincarnation

Mo Shen was a cultivator known across the world for his evil dead and lewd cultivation method, he was chased to the mountain peaks by emperors and powerful cultivators. Not willing to die, he used a forbidden technique that created a portal which poured demons into the world while his Soul was sent to a new world. I own the right to the cover.

🏆["Silver Medal" in Sci-Fi Category of "Meganovel Annual Writing Contest 2022"]🏆 With a scourge of magic-eating creatures ruled by an evil demon king sweeping the land, the Royal Defence Corps are the last thing standing between the Drasini Kingdom and destruction. Administrars grant Initiates powerful magical abilities and weapons to fight back against the hordes, but the war is slowly being lost. Alexei was granted what many would call The Weakest System, but levelling it up will prove that any abilities can be used to incredible effects!

Twenty-four-year-old Ethan Cross is a broke delivery guy stuck in a decaying city, betrayed by his girlfriend, mocked by coworkers, and ignored by society. One night, after saving a mysterious old man from thugs, he is rewarded with the Conqueror System, a mysterious interface that grants him skills, wealth, and abilities in exchange for “conquests” in the real world… both in business and in romance. The more he wins hearts and dominates industries, the more powerful he becomes physically, mentally, and socially. But soon, he realizes that his rise threatens the interests of shadowy organizations, ruthless billionaires, and supernatural enemies who see him as a dangerous anomaly.

Noah Kane has spent his entire life being told he's worthless. An orphan with no family, no wolf, and no future, he's ridiculed at Blackwood Academy, where the strength of your bloodline determines your worth. Betrayed by the girl he loved and humiliated before the entire school, Noah believes fate has already abandoned him. Then he dies. As his blood soaks an ancient pendant left by his unknown parents, a voice echoes through the darkness. [Compatible Host Confirmed.] [The Last Lycan System Activated.] In an instant, Noah awakens the legendary bloodline believed to have vanished centuries ago—the blood of the Last Lycan King. Now every Alpha Lord, vampire house, hunter guild, and hidden faction wants him dead before he claims the throne that could unite—or destroy—the supernatural world. With every mission completed, the System unlocks new powers, forgotten memories, and terrifying truths about the massacre that wiped out his family. But strength comes with a price, and every evolution pulls him closer to the ruthless monster the world fears he will become. Standing in his way is Lyra Ashbourne, the proud daughter of one of the Twelve Alpha Lords. Raised to believe the Last Lycan is humanity's greatest threat, she's sworn to hunt him down. Yet every encounter shatters what she's been taught, forcing her to question her family, her loyalty, and even her own heart. As enemies become allies, secrets become weapons, and love blossoms in the middle of a war neither of them chose, Noah must decide whether to become the king history demands... or the man Lyra believes still exists beneath the beast. Because the greatest enemy isn't the hunters chasing him. It's the darkness awakening inside him. When the last Lycan rises, the world will either kneel... or burn.

Wrongly imprisoned and betrayed by the powerful, Owen awakens a mysterious system that turns suffering into power. Hunted by the law and the elite, he must rise through strength, reputation, and wealth, or be erased by the same world that tried to bury him.

Adrian Azuma was an ordinary high school teacher with a quiet life and a loving wife until a vampire took everything from him. When Sarah is murdered, the authorities dismiss her death as a tragic accident. But Adrian soon discovers the horrifying truth, vampires secretly live among humanity. Desperate for revenge, Adrian is recruited by Lirielle, an elite vampire hunter and member of the mysterious organization known as Black Cross. Determined to find the vampire responsible for his wife's death, Adrian joins the organization and begins his brutal training. Then, after killing his first vampire, something awakens within him. A mysterious system. > The more vampires you kill, the stronger you become. Every kill rewards Adrian with Blood Points, allowing him to enhance his physical abilities beyond the limits of an ordinary human. By day, Adrian returns to his life as a teacher, hiding his new identity from his students and colleagues. By night, he becomes Shadow, a Black Cross hunter hunting Vampires that lurk among humanity. But ordinary vampires are only the beginning. As Adrian grows stronger, he discovers that the supernatural world is far more dangerous than he imagined and that the system may have a purpose beyond simply making him stronger. He wanted revenge and the System gave him power. But how much blood will Adrian have to spill to uncover the truth?

Bima is a saintly orphanage volunteer whose life takes a bizarre turn when the Super Villain System forces him to become the next Demon King. Determined to keep his morals intact, Bima begins to exploit the system's logic with ridiculous loopholes to gain power without hurting anyone. As the frustrated system watches its candidate become a champion of trolling rather than terror, Bima must balance his heroic heart with the dangerous, escalating demands of his new digital master.

Satya’s life was already boring. But then, a 'System' appeared, forcing him to become the hero in a cliché *manhwa* story that he despised. Instead of saving the world, Satya is preoccupied with finding ways to disable pop-ups, exploit system bugs, and prove that real-world logic is far more effective than the sword Excalibur. Prepare for an unheroic adventure, packed with sarcasm, and an epic resistance against narrative destiny. Can an average employee destroy the genre from the inside out?

Ethan Cross, a struggling orphan living in the slums, awakens a hidden system after a life-threatening encounter with a powerful noble. The system grants him access to hidden knowledge, martial skills, and an evolving interface that allows him to manipulate reality. Ethan begins his climb from the gutter, navigating through dangerous political games, ruthless guilds, and ancient dungeons. As his power grows, so does the danger — for the system he wields holds the key to an ancient prophecy that could reshape the fate of the world.

Intelligence, Deceit, Cunning and Luck are concepts that tie to genius. Louis, who was born with above average intelligence, got all four concepts and became a true genius. And a true genius becomes a double-sided sword. Will it be a problem solver? or even a trouble maker? It all started when Louis got an injection of nanoparticles into his body. Something much higher than modern words appears and changes Louis' life. The system appears and allows Louis to make the impossible possible. He will easily solve the criminal cases he handles. What awaited him in the days to come were cases that were more complicated and would require even greater effort to deal with. (Some events that occur and locations are indeed inspired by the real world but have nothing to do with real life)