Sin System: Demonic Harem After Reincarnation

After his business bankrupt, Alexander Gates was despised and insulted by his wife's family for being a penniless son-in-law. He is really being a poor guy. When his wife cheated on him with a richer man, he is very disappointed. One day, when Alex is really need money, a system on his smartphone vibrates. The system says that by clicking the link, all the money will be yours! Only with a wealthy system, in a second he can become a billionaire! *** Cover by Ai

In a world where cultivation is the path to purity and power, Kael, a low-ranking sect disciple who was always underestimated, finds himself on the brink of death after being brutally betrayed by his own sect. As his soul wavers, a mysterious system awakens in his mind: [Sin Cultivation System Activated]. This forbidden system offers Kael the power of the seven deadly sins—taboo energy that even demons fear. To activate and strengthen each sin, Kael must forge deep bonds with powerful women, where each woman represents the essence of a single sin, transforming him from a victim into the hunter. As Kael gathers this forbidden power, takes revenge on his betrayers, and builds his strength, he inevitably draws the attention of the Orthodox Immortals, the guardians of purity who view his cultivation as the most heinous heresy. Kael must navigate a world that sees him as an existential threat, mastering the powers of his sins—from Lust which enhances vital energy, Wrath which boosts combat prowess, to Greed which multiplies resources and Envy which mimics an opponent's techniques—all while building an unconventional circle of allies from the powerful women bound to him. However, Kael's path carries a terrifying destiny. Ancient legends foretell that if all seven sins are united within a single vessel, they will awaken the Sovereign of Sin, a primordial being capable of devouring the energy of gods and collapsing the universe. Kael soon realizes that he may be the destined vessel for this ancient entity, and every step toward mastering his sins brings him closer to the Sovereign's awakening.

Ten years of being foolishly in love! That’s what it cost Zilu to realize the woman he loved was a predator—and he was just the prey. ​Left heart broken and bleeding on a rooftop, Zilu watched his fiancée, Xena, laugh in the arms of his rival Arsh while they stripped him. He was supposed to die there, but the universe had a darker plan, and it came with a high-pitched buzz and a hunger that wouldn't quit. ​[Welcome, Host. The Swarm awaits.] ​Saved by a mysterious System, Zilu is given a second chance at life with a twisted catch. To survive, he must become the King of the Aedes realm. He’s no longer a man; he’s a shadow, a silent fever, a tiny executioner capable of slipping through any crack and delivering a lethal, custom-strain of Dengue to those who ruined him. ​But the System isn't just helping him settle a score. It’s hungry. It demands a Blood Tax from every human he touches, and as Zilu harvests for the system, he begins to realize the terrifying truth. The mosquito form is just the beginning. ​Every drop of blood he feeds the System is a key, slowly unlocking the gates to a long-forgotten Vampire Realm. Zilu started this journey wanting revenge, but the deeper he sinks into the System’s hidden agenda, the more he realizes he isn't just hunting his ex-fiancée anymore...he’s becoming the progenitor of a nightmare that will swallow the world whole.

“What type of a beast did you awaken? Is that a Tick? ” The grandmaster asked and everyone burst into laughter, many awakened powerful beasts with great capabilities but all he awakened was a tick. Little did they know That he had awakened the lost Dragon god. Update rate: 3 chapters/ week. Monday, Wednesday, Friday

He doesn’t know his bloodline. But his shadow remembers. Born with a giant wolf-shaped shadow that moves on its own, and a pendant from the parents he never knew. Kai Draven got caught up in a dorm for supernatural misfits. Welcome to Vespera High Academy, a school divided by factions, ruled by strength, and ranked by blood and fist. Here, students don’t just study......they duel to survive. And Kai? He’s at the bottom. No powers. Just a reputation his shadow made before he could even open his eyes. But when defeat cracks the locket, something happened. [SYSTEM ACTIVATED…] [LUPIN CODEX UPLOADING......] Something is about to happen in Vespera High Academy........

Gray Adams grew up with nothing but long shifts and calloused hands. After losing his last job and facing eviction, he thought his life was over. Then, on a rain-soaked night, a voice echoed in his mind: [Welcome to the Great Fortune System.] That single message changed everything. The System offered missions tied to money, ambition, and discipline—rewarding him for smart investments, confidence, and courage. As Gray climbed from broke laborer to rising entrepreneur, he discovered that real power demanded more than wealth. When success tempts corruption and rivals try to destroy him, Gray must choose between becoming another ruthless billionaire or staying true to himself

In a world where power and ranks decide fate, Henry is nothing. An F1 scraping by in the slums of Neo-Veridia, his life is a cycle of struggle and survival. But everything changes in an instant. A catastrophic accident. A moment of darkness. And then—he awakens. A System unlike any other. No fixed path. No limits. Infinite potential. Now, the city's elite watch him with fear. Ruthless factions move in the shadows. Something ancient stirs beneath the surface. And Henry? He’s done playing by their rules. The hierarchy was unbreakable—until now. Power has been rewritten. And Henry is just getting started. Will Henry rise out of the ordinary and actually break the hierarchy from the system? Will he make space for something new?

What comes after death? HE was ready to accept that he had lived a meaningless life as a sworn sword to another.... for another. HE was ready to accept that his life, which fell apart in the blink of an eye, and led him to tread through countless battlefields as a common footsoldier of no renown, was his sole accolade as he passed on. That was all there was to it. However... Death isn't the end. There is no time to rest. Another life awaits, and you have the privilege of choosing what you will be when you are reborn. But you work for it. You toil. You prove your worth. Whether the end goal is to become a Devil, an Angel, a Young Master, a Hero, a Giant, or a god. You bleed for it, in 'Prospect For Reincarnation'! --- Hello there! I will be posting this story on Royal Road under the name Shade Arjuun!

In a realm where the vast majority of its inhabitants possess intricate Systems, Barlor Slash finds himself belonging to the downtrodden and marginalized minority. However, his fate took a dramatic turn during an expedition when he chanced upon a Divine Dragon who bestowed upon him a formidable System. Now, Barlor stands poised to pursue not only Fame and Fortune but also the sweet taste of Vengeance...

For three agonizing years, Marcus Chen endured the daily humiliation of being the Williams family's useless son-in-law. Mocked by his wife's relatives and treated as a live-in servant, he swallowed every insult while his beautiful wife, Emma, grew cold and distant, ashamed of their marriage. His breaking point came at Emma's birthday party, where his cheap gift was scorned and his brother-in-law, Daniel, publicly announced Emma's engagement to a wealthy rival. As Marcus stood broken and covered in champagne, Emma delivered the final, crushing blow: "I'm sorry, Marcus," she whispered. "But Daniel's right. You're... you're just not enough. You'll never be enough." But the forces that sought to destroy him made a fatal mistake. Stumbling into the cold night, Marcus was nearly killed in a staged accident, a final act of cruelty that instead triggered an ancient power. The **Legacy Inheritance System** roared to life, revealing his true identity as the lost heir to the trillion-dollar Chen Empire, a conglomerate thought destroyed twenty years ago. The system's first command was clear: **[SYSTEM ACTIVATED: HEIR RECOVERY PROTOCOL INITIATED]**. From a scorned waiter to the master of a hidden fortune, Marcus is reborn with a single, burning purpose: to reclaim everything that was stolen from him. Now, Marcus Chen is no longer the man they humiliated. Each system mission unlocks new abilities, exposes hidden enemies, and brings him closer to the truth behind his family's downfall. He will rise from the ashes of his past, an unstoppable force ready to crush the powerful elite who once laughed at his pain. Will he succeed in reclaiming his empire and proving his worth to the woman who abandoned him? Or will the conspiracy that destroyed the Chen family finish what they started? Dive into this tale of revenge, redemption, and the ultimate system-powered comeback.