Sin System: Demonic Harem After Reincarnation

Jin returned from another world. The dead rise and eat the living. Without a way out, he accepts his fate and lets the undead eat him. “Was that… Me? Or rather, my body? W-What happened to me…!” [Do you want to activate the Undead System?!] A/N Many thanks to Sera Execfia for the gorgeous Cover art.

William, an internationally recognized game developer and also the mafia lord of the underworld, was on every country's wanted list because of his unparallel hacking and large control over highly classified information and power. Betrayed by his biological brother, who shot him to death, he was reincarnated in the world of warlocks. In a world where magic reigned absolute, he was constantly abused for not having magical power and was eventually sold to some slave merchants by his new family, where life became even hellish. Beaten to coma after being caught trying to escape, he woke up with a system which provided him with a second chance to prove himself. Being granted the ability to copy other people's magic by writing their names in the ancient grimoire. Jerouch was set on walking a path where even gods have fallen. What end would be the path of a nobody who ascended with the system as his support in a world full of mythical creatures, gods, dragons, and demons…

The Wendy family considered David Anderson utterly useless. As a result, he was forced to endorse a crippling loan taken by the family. David was left to starve for months at the loan shark company. One day, his frail, close-to-death body was mercilessly thrown over a fence. As soon as his body hit the ground with a thud, he mysteriously became the host of a trillionaire system.

🏆[No.3 "Outstanding An Story" of "The Ultimate Fantasy" Contest]🏆 -- [Congratulations to cuckolded host for successfully awakening the Myriad Returning System.] ........ James Flynn, an ordinary college student who was betrayed by his girlfriend because he was too poor received a system that altered the trajectory of his life completely. With the welcome of this system, James shall realize that the world he lives in is more than what meets the eye, he shall also know of his mysterious identity which is anything but ordinary, and all the mysteries unknowingly surrounding him. He shall go against several powers and organizations and he shall gain a lot of powerful and mysterious abilities. He would dominate the normal, abnormal, and fantasy world. Follow James as he travels between States, countries, and worlds, creating wonders and legends. This is an urban, system, and fantasy novel filled with drama, comedy, mysteries, secrets, face-smacking, love, actions, and many more. ****** Please, as this is my first signed book, the first several chapters might have some errors in them, but I promise that the deeper you go, the better the book would become, and the more you would realize how great this book is, thank you.

Pointus Gray is a struggling young man whose life falls apart when he catches his girlfriend cheating on him. Heartbroken and ready to end it all, he stands on the edge of a bridge—until a mysterious golden light introduces him to the Fortune System. The system grants him $1,000,000 and a simple challenge: spend every dollar within 72 hours without revealing where it came from. As Pointus races against time, he discovers the system rewards him for humiliating enemies, outshining rivals, and taking revenge on those who wronged him. What begins as a chance at wealth quickly becomes something far more dangerous. Pointus learns that other people possess similar systems and are competing in a deadly game where failure means being erased from existence. With the countdown nearing zero, Pointus faces a final showdown at a prestigious charity auction against his cheating ex and her wealthy lover. To survive, he must spend the last of his fortune in a gamble that could either secure his place among the elite Fortune Holders or wipe him from reality forever. Armed with intelligence, courage, and the Fortune System, Pointus rises from an overlooked nobody to a powerful figure feared and respected by all, ultimately achieving the wealth, influence, and life he once only dreamed of.

He was the strongest Arch Angel... until the ones he trusted most betrayed him. Lucifer, radiant, ruthless, revered. Slain in a brutal ambush by his fellow angels and demon lords, his legend was supposed to end there. But Lucifer was a being that defied even fate itself. Reborn as Arthur Stark, a genius heir on a distant world, he lives unaware of the divine power buried within him. Until battle awakens something ancient, something unstoppable. Now, with war looming across realms and his true identity resurfacing, Arthur must rise, not just for revenge, but to claim the destiny even the heavens fear. This is a story of betrayal, power, and a fallen star destined to ignite the cosmos.

Tahir, yearning for a beast hunter's life, remains an outsider in a society preparing for another war with the Aliens. A mysterious package arrives, containing a letter from the military academy and a peculiar box labeled "System." This unexpected turn awakens him to hidden abilities and the unsettling presence of two voices within his mind. Unfolding the journey with his "System." Is he destined to be a warrior, a beast hunter, or something else entirely? Can he forge his own path while embracing the looming conflict? Join Tahir on his extraordinary journey as he unlocks the "System's" potential, navigates the voices' guidance, and faces the uncertainties of war. Can he unravel the mysteries of his past and claim his place in a world teetering on the brink? Discover the answers in this captivating tale of self-discovery, hidden truths, and the fight for survival in a world on the brink.

Gerry Sterling spent twenty years of his life as the useless outcast of the prestigious Sterling Clan. On his twentieth birthday, his world fell apart. His fiancée, Helena, broke off their engagement. Then his own father drugged him so his kidney could be forcibly harvested to save his genius older brother, Dandy. After being cast into the Forbidden Abyss and left to die, Gerry unexpectedly encountered a mysterious System that offered him unimaginable power. But when he realized the System had its own hidden agenda, he chose the harder path. He refused to become its puppet. With a broken body and an unshakable thirst for vengeance, Gerry forged his own destiny. He bent the power he had been given to his own will and prepared to destroy the very clan that had abandoned him.

When a ruthless alien tribe threatens to conquer Earth, one man must rise up and fight for the fate of humanity. Sunny Raven, a reluctant hero with incredible powers, faces his greatest challenge yet as he battles the alien invaders and confronts his own inner demons. But as the world around him descends into chaos and despair, Sunny discovers the true meaning of heroism, sacrifice, and the power of forgiveness. Can he overcome his own doubts and unite a divided world in the face of an extraterrestrial threat? Don't miss this thrilling system and sci-fi adventure that will keep you on the edge of your seat from beginning to end

Vino suddenly gets a system that allows him to do extraordinary things. But just as he's enjoying the system, it suddenly demands a mission: to earn the trust of a mysterious elder and uncover her hidden secret. Can he do it?