Sin System: Demonic Harem After Reincarnation

Ethan Cole was once the most promising medical researcher of his generation. When his wife Maya was diagnosed with a rare heart condition, he did not hesitate. He sold his groundbreaking patents, abandoned his career, and devoted his life to saving her. It was all a lie. Maya never had a heart condition. The diagnosis was fabricated, a scheme orchestrated by her and Ethan's own mentor, Dr. Raymond Voss, to steal his research and claim the glory. While Ethan bankrupted himself for her, Maya was building a life with Raymond, using Ethan's stolen work to rise to the top of the medical world. Exposed, humiliated, and blacklisted from every hospital and institution, Ethan hits rock bottom. Then the cruelest blow lands. He himself is diagnosed with a terminal illness. A doctor who cannot save himself. Penniless, alone, and collapsing in a dark alley, death feels inevitable. Then a ding sounds. [Diagnosis System Activated. Your life has value. Prove it.] With a System that rewards him for diagnosing patients, solving medical mysteries, and exposing frauds, Ethan begins his climb back from nothing. Every diagnosis earns him points. Points unlock skills, wealth, connections, and most importantly his cure. But as he rises, old enemies take notice. Maya wants him silenced. Raymond wants him destroyed. And a deeper conspiracy behind his stolen research begins to surface, one that could shake the entire medical world. He was broken. Now he is unstoppable.

Heartbroken and drifting through the night, Daniel’s life changes with one bite from a mysterious girl. Suddenly, his senses sharpen, his strength grows—and a hunger awakens he can’t control. Now, every heartbeat, every shadow, every desire pulls him deeper into a world of darkness, danger, and temptation. Can Daniel survive the monster rising within—or will it consume everything he loves? All Chapters are free for now so enjoy and don't forget to comment and add to your Library

🏆["Golden Medal" in System Category of "Meganovel Annual Writing Contest 2022 & #1 King of System, Meganovel First Book Winner"]🏆 Ares Shaddai was a warrior who died on the battlefield due to the betrayal of those he trusted. Ares' soul wandered and was reborn in a person identical to himself in another world. The man was a prince who died simultaneously due to betrayal by his family. With the system's power, the spirit of Ares, the soldier, merged with the Prince's body.

Ryan Wilder is secretly married to Violet Crowne, a rising star with the beauty of a Goddess. The bad news? Violet hates him. Her family also treats him like a scum and humiliates him for fun. To make it worse, Violet cheats on him, too. It's a big combo for a life that feels like hell. Then, something unbelievable happens. Peeep! [You have been chosen as TEETS's Potential Host.] [Please state your goal.] 'I want revenge.' [Congratulations!] [Now, you have become TEETS' Host.] TEETS, short for Terribly Excellent Emperor-Training System, will grant him superpower abilities if he completes the missions it gives. [A new mission received!] [Face-slapping Son-in-Law: Acquire $100.000.000 in 24 hours.] [Ability Reward: Unlimited Balance Lvl 1.] [Description: Allow Host to buy everything via online transaction.] Slowly but surely, Ryan becomes a powerful figure with his eyes set on revenge. However, when he is enjoying life and setting his revenge on everyone who had wronged him, his past catches up with him. "My son," the wealthiest man in the States said, "I want you to go home with me and be my successor." Ryan wonders if his life could get any worse.

"I'm Electric" - Obed Obed, the main character lost his father in a war with the demons. He founds this book in his school library which gives him an electric ability. Obed then attends a magic school where they have to save humanity from alien invasion. Will Obed be able to defeat the aliens and save humanity or will the aliens rule over this planet for the second time?. Join Obed on this phenomenal adventure to make it your inner ability system Gained electric ability. Face a demon king. Face the mother alien Save humanity.

Eden Flick is a poor young man, without a family and trying to get an education in one famous university in the city by working odd jobs as pay. Eden tries daily to earn money after school because his tuition bill is already two months in arrears. The cost of his flat house was also so much that he had to pay it off immediately. Some students who knew about it, of course, mocked and insulted him, giving him many challenges with the lure that they would pay for his tuition fees, but they were lying. One day, he was almost beaten to death by three of his college friends, plus he got a beating from the head of his university foundation. Eden collapsed with multiple injuries, conscious of nothing, but when he woke up, he had $1,500,000 in his bank account, and he was also in the VIP room of the city's most famous hospital. Not only that, there was also an inscription on his cellphone screen that said. "Get your revenge!" *** I own the copyright to this cover including all parts and layers! Source : Pixel and Canva

Villains? What do you think of that word? Yes, Demon, Cruel, Evil, Cunning, Troublemaker, and many more... And always inferior to the Protagonist, who many people always adore for being a hero to kill Villains. Liang Xin only realized that he had reincarnated into his own body at a young age but in a different dimension. Not on Earth but in the Regabugile Dimension, a place filled with powerful cultivators from various clans and levels. Unfortunately, he became a Villain in that dimension and was chased by many Protagonists because he killed one of the Young Masters of a Famous Clan. "Indeed, my luck has never been good anywhere! Including in this Dimension!" But Liang Xin got full support from the system. [DING!] [Bound System has been activated] [Helping the Host to become a Villain SSS Level and be invincible] [Host Gets Special Gift]

I wasn’t reborn pure. I wasn’t reborn righteous. I was reborn unfinished. In a fractured fantasy world where cultivation advances through Marital Arts, power is forged through soul-bonds—vows that can elevate partners together or enslave them forever. Strength is no longer solitary. Love, betrayal, and shared destiny decide who ascends. Aren Valen awakens as the weakest outer disciple of the Azure Pact, carrying memories that should have died with him. In a past life, he was the Dragon Sovereign, erased at the brink of ascension by those he trusted most. Now, his Dragon Core is shattered and sealed, immune to orthodox cultivation. It awakens only through bonds freely chosen—not forced, not stolen. As ancient Dragon Veins stir, cultivation laws begin to collapse. Sects fall overnight. Empires rise on corrupted Marital Arrays that chain partners instead of empowering them. Defying all doctrine, Aren unlocks the forbidden Dragon Marital Codex, a path where power is shared without submission. Each bond awakens a Dragon aspect—Wrath, Wisdom, Dominion, Mercy—at a cost paid in trust and blood. Fate draws powerful women into his orbit: a sword cultivator haunted by memories of loving a Dragon, a rogue spirit alchemist hungry for forbidden truth, a fallen imperial princess seeking control, and a beast-blood warrior torn between instinct and reason. They are allies, rivals, and potential betrayers. But the past has returned. Aren’s former betrayers have reincarnated too, now ruling the new era—and they intend to erase him again by turning his own bonds against him. The Dragon needed a harem. The world is about to learn why.

Simon faces humiliation at every turn. Seeing his girlfriend having sex with a popular boy drives him to the brink of a breakdown. A brutal beating makes him question his worth. Satisfaction System lures him with the promise of power and greatness. With all the women at his disposal, will he go for pleasure or revenge?

Wes Calder used to save people for a living. Now the System wants him to farm them. When Portage City is swallowed in a single night, a "Survival Assistance Protocol" lights up in front of every survivor's eyes — levels, quests, loot, the whole game. It looks like salvation. It plays like salvation. Wes almost believes it, right up until his squad's data analyst notices the math doesn't add up: the people who level fastest disappear soonest, and the "safe zones" cycle like feeding troughs on a schedule. They're not inside a dungeon. They're inside something's stomach, and the game is how it keeps its food calm, cooperative, and coming back for more. With a fracturing squad, a faction of true believers trading the weak for "Blessings," and a countdown he can't see, Wes has to find a way to survive a system built to be survived — without becoming the kind of person who feeds it.