Sin System: Demonic Harem After Reincarnation

In a near-future world on the brink of destruction, the fate of humanity rests on the shoulders of the Pendulum Squad, a group of elite soldiers tasked with protecting the world from a new and dangerous threat. Led by Captain Jenna Williams, the squad must navigate treacherous terrain, outsmart their enemies, and make tough decisions that could mean the difference between life and death. As they journey across the globe, the Pendulum Squad faces new challenges at every turn, from hostile enemies to unexpected allies. But when Jenna discovers a shocking secret that threatens to upend everything she knows about her team and their mission, she must race against time to uncover the truth and prevent a catastrophic disaster. With each passing day, Jenna and her team are pushed to their limits, as they confront betrayal, sacrifice, and the consequences of their actions. As the stakes get higher and the danger intensifies, the Pendulum Squad begins to crack under the pressure, and Jenna is forced to make difficult decisions that could cost her team everything they've worked for. In the heart-pounding conclusion, Jenna and her squad face their toughest challenge yet, as they confront their enemies in a showdown that will determine the fate of humanity. Will they emerge victorious and save the world from destruction, or will they fall to the forces of evil and doom humanity to a grim and uncertain future?

What do you do when no one around you can be trusted? When the world turns its back on you? Can you fight them all—and win? I tried. And now… here I am. With two names. Weird, right? Ironic, even. But that’s my reality. Don’t ask how I got my name. You’ll find out soon enough. For now, just know this: I’m Gensei Haruto. The only human without a core. In a world where power defines your worth, I have nothing. No family. No hope. Not that hope matters—hope is a disease. But there's one thing I will protect, no matter what it takes. Even if it kills me. Even if I lose everything. I will grow stronger. No matter the cost.

The story follows Lucian, a low-born vampire ridiculed for his inability to manifest basic blood magic. In a world where the Werewolf Hegemony rules the daylight and High-Vampire Nobles rule the night, Lucian is nothing. That changes when he "dies" during a wolf raid and wakes up with the Eternal Night System.

David Sawyer, a normal office worker woke up suddenly to an unfamiliar world. The Apocalypse was here, and with it, a shocking realization of truth hidden just under his nose all this time. Fighting with the weight of betrayal, Dave casts aside his feelings to protect the lives of those he loves. Will his newfound apathy lead the way to survival and regrowth? Can a mask hide away the pain of love lost? DISCLAIMER: This is NOT an apocalypse story. The story explores adaptation and survival under rapidly changing world conditions. MC is not some chosen one or freek genius, he's lucky and intelligent, not a fool. Romance is a little heavy but not the main theme. Survival, human duality, conflict, and the very nature of the world itself are the book's focus. Every character has depth, and nothing is truly meaningless. Pay attention and see if you can pick up that deeply hidden foreshadowing.

Jonah never imagined his routine day at the office would turn into a fight for survival. When a mysterious infection turns his coworkers into flesh-eating zombies, Jonah narrowly escapes, only to discover a strange new power within himself: every undead he kills makes him stronger. In this gripping survival tale, Jonah must decide what it truly means to be a hero—and discover that even in the darkest times, family can be forged from the unlikeliest alliances.

Orphaned teenager Lucien is stuck at the early stage of 1-star the weakest possible shattering his dream of becoming an elite hunter. But when a rogue hunter corners him and his best friend, a hidden power awakens: The Phoenix System. Sealed within the pendant from his parents, it grants him strength beyond human limits and unveils a destiny greater than he ever imagined. At the Hunter Academy, as Lucien trains, completes quests, and battles through dangerous realms, whispers of an ancient calamity stir. The eternal war between the Phoenix and the Dragon threatens to consume the world, and in the shadows, a sealed entity of pure evil waits for its chance to break free. To protect everything he holds dear, Lucien must rise above his rank, master the four primordial energies of the universe, and decide the fate of gods and mortals alike.

Bryan Grayson. An illegitimate son of the great Houston family in Alorea Nation, now finds himself on the streets with his mother. After being kicked out by the Houston, Bryan chose to join the Alorean Nation army as there was no company that accepted him due to the influence of the Houston. Bryan's story changed when on a mission he gets blasted by an RPG. He died a pauper.. but awaken a military god.

250 years after the Ascension wars that led to the destruction of the moon, unsealing the seals that hold the ancient substance of Nytherite that allowed humans to progress technologically, but soon became the object of doom, corrupting every non human life form into ravage and dominant beasts called Extremovores that forced what was left of humanity to flee the surface. Creating seven gigantic floating arcs as sanctuaries, away from the extremovores. Adam and his sister Eve, Identical twins born in the post-surface surciety where your genetic purity determines your worth, with humans devided into Pures, Transcendants and Outcast. Adam, as an outcast must navigate his way in a cruel world where he is destined to be stepped on and used as a comodity had a fateful encounter with a relic that changed his path. The primordial Beast System. He must use this power to awaken his pottential and earn a place in a cruel world

Jay was the shadow behind the world’s brightest stars. Armed with a psychological framework known as the "Vulnerability and Value System," he could turn a nobody into a god, and a king into a beggar. Betrayed by his mentor and erased from the world, Jay was left with zero dollars and a burning thirst for vengeance. Now, starting from the literal gutter, Jay is building a new empire. His first asset? A janitor with a golden voice and a dark past. His first soldier? A disgraced journalist with a vendetta. But as Jay claws his way back to the top of the entertainment industry, he discovers his former agency is just the bottom rung of a terrifying global cabal that treats human beings as literal stocks. To win, Jay must become the most ruthless architect the world has ever seen. The market is open. And Jay is about to short-sell the world.

They thought he was trash but he awakened a deadly skill that none could rival. Disowned by his father and murdered by his brother, Kael Ashworth was supposed to be a forgotten stain on his family’s legacy. Instead, he found something in the abyss—an ancient, hungry entity that offered him a second chance. Now, armed with the power to devour the abilities of those who wronged him, Kael has returned from the grave with a simple checklist: Save his dying sister, crush the S-Rank elites of Apex Academy, and eat his way to the top of the food chain.