Sin System: Demonic Harem After Reincarnation

A young man in the 21st century, dies of cancer and awakens before a carefree goddess who sends him to another world for some fun. He is reborn in an alternate New Spain, during the early years of the Viceroyalty, where magic exists and history can still be rewritten. Born a mestizo, the son of a Spaniard and a native woman, Alejandro is caught between two warring cultures and receives the Anáhuac System of Historical Reset, a chaotic power that allows him to alter the course of the past. In a world of conquest, fanaticism, and betrayal, he must decide if it is possible to liberate a land without becoming what he swore to destroy.

Kai Wang died a loser–beaten to death in an underground fight while he watched his girlfriend kiss his killer. Kai gets a second chance at life–but it comes with a price written in blood. Granted by a mysterious system run by seven faceless beings. Now reborn with power he must fight his way back to the top while completing missions for his faceless masters. He must save his dying mother, destroy those who betray him, and become the unstoppable figure no one expected. But every mission pulls him deeper into darkness and one question remains–will he save his soul or lose it chasing power?

Aarav is seen as a useless parasite to everyone, including his wife who is having an affair with a rich man. Just one day after being falsely accused of going to prison and bullying, the death of his mother, and having his restaurant confiscated by the bank because of debts, a powerful money system suddenly emerged. Ever since the system came into existence, Aarav has come to know a dark secret his family has been keeping. Now he has a goal: to make sure that people, including the black organization that killed his father, pay for what they did.

“They only notice when you’re shining, but they never ask how long you burned to glow.” Asher Reynolds had one dream—to make music that mattered. But when the girl he sacrificed everything for betrays him with the superstar he idolized, his world shatters in front of millions. Broke, humiliated, and seconds from giving up, Asher unlocks PHEME—a mysterious ancient system that promises to turn his pain into fame. Overnight, the world falls in love with the boy they once mocked. But fame has rules. And breaking them could destroy everything. Now Asher’s rise threatens the very man who ruined him—Neil Carter, the golden boy with a dark secret and his own sinister system. Their rivalry turns into a war of gods: one powered by truth, the other by corruption. Fame made Asher a star. Vengeance might make him a legend. But at what cost? Read on to find out in this thriller!

Framed for murder. Thrown into The Pit. Left to die. Kael Ardan was just another street rat in New Veyra, a city where the strong rule and the weak are nothing. But when betrayal sends him to the city’s most brutal underground prison, he’s given a single choice — die like the rest, or listen to the voice calling from the darkness. > “The Void has chosen you. Devour, evolve, ascend.” Bound to the mysterious Void System, Kael gains the power to absorb the strength of his enemies, upgrade his abilities, and shatter the rules of reality itself. From the shadows of the slums to the shining towers of the corporate elite, from battling street gangs to facing supernatural clans and interdimensional invaders, Kael will rise — and every level-up will be paid for in blood. In a world where power is everything, Kael is about to become the one name that even gods fear to speak.

Betrayed. Cast aside. Killed. Valor Harder, once the world's strongest hero, lost everything when he sealed his rogue son, Dusk, in the Astral Sanctum. Stripped of power and left to die, he uncovered secrets about a world ruled from the shadows—but was executed before he could act. Reborn as Ashen Azarious, a mere boy with a mysterious system, he must rise through the ranks of All Valley Academy, battling oppression, uncovering the truth, and preparing for Dusk’s inevitable return. The world is broken, but Ashen refuses to be a pawn. This time, the hero will fight back.

In a world filled with monsters and demons, hunters are the ones who protect humans from the relentless attacks of these creatures. They are admired and respected in society and have access to any service. At least almost all of them. Fanel is a hunter considered the weakest and is therefore despised and mistreated by all. Despite his strength of will, his physical weakness and lack of talent persist. But during a mission in a dungeon, he receives an unexpected offer from the system, thus obtaining a unique ability: the God Hand. This faculty not only gives him phenomenal power but also allows him to become the most powerful hunter. But the system has a condition to this power, Fanel will have to punish other hunters who have turned away from their role as hunters to exploit normal humans Fanel must now navigate this dangerous world as the self-proclaimed enforcer of justice. He will not only have to fight monsters and demons but also hunters while hiding the identity of the famous punisher he now embodies.

​Arlan Mahendra was born a "mistake"—an illegitimate son destined to be trampled by his elite half-brother and the ruthless Mahendra family. Beaten, bankrupt, and left to die in a rainy alleyway while his mother lies on her deathbed, Arlan screams for justice. ​The Universe answers. Not with a guardian angel, but with a cold, digital ledger. ​[System Activated: Karma Debt Collection] [Target: Julian Mahendra] [Debt Status: Unpaid. Penalty: Seizure of Lifespan and Luck.] ​Armed with a system that turns every insult, bruise, and betrayal into "Debt Points," Arlan rises from the gutter. He discovers he can forcibly collect "payments" from those who wrong him—stripping away their health, their talents, and even their remaining years of life. ​He doesn't want an apology. He doesn't want peace. He wants to audit the world. ​From stealing the vitality of arrogance billionaires to seizing the luck of corrupt geniuses, Arlan becomes the world's most terrifying creditor. ​They say revenge is a dish best served cold. For Arlan, it is simply a transaction. And everyone is about to pay up.

After been killed by his cheating girlfriend's heartthrob, Donald finds himself reincarnated within the body of a weak hunter in another universe. He somehow is bestowed with a system upon his death and got transmigrated by its powers. In this apocalyptic world where monsters and demons thrive, Donald must complete every mission the system asks him to do in order to become more powerful and have his revenge on those who scorned him—even if he has to destroy the world to achieve this. And even if he has to become a villain to become more powerful, he is willing to walk that path. After all, humanity is already sunken beyond redemption. This is the purpose of the system—the Renegade System with which he awakened!

Following planetary disruption, three factions based on virtues were formed by people who awakened with special powers. Forming alliance, they exploited the common people, and ruled over Lysbia. These factions were superior to the commonality living outside the capitol hill and they governed the entire Lysbia from the capitol hill, where they withheld the wealth of Lysbia to themselves, suppressing the rights of its vulgar citizens and regulating population through financial restraint and starvation, thereby enforcing a survival game. Ethan Hills, a commoner, lost his job and about to be homeless based on an act of betrayal by the people he trusted. And having no hopes of surviving in the dystopian society, during the night, a system activated in his head, granting him multiple powers if he accomplishes every task it presented before him and level up. He quickly discovered that the majority of his task, brought forth by this resurgent system, revolved around the confines of the Capitol Hill. While undertaking his quest to reach Capitol Hill, Ethan becomes aware of the intricate oppression that governs the territory, extending its influence over the surrounding population. To establish harmony and fairness, he must harmonize with the existing system while maintaining a strong bond with his loyal companion, Isabell Wells, where what seems to be a hopeless situation soon turned out to be an adventurous moment to witness. "System activated! ...host capacity optimal, user friendly." ...[Installation process initializing...] The moment has come for Ethan to ascend and make his decisive choice.