Sin System: Demonic Harem After Reincarnation

A hundred and sixty years after the dragon bloods attacked the earth and a mysterious stone shattered, granting humans abilities, Mason Blackwood is one of the few to not have awakened abilities. But after a night of being chased by neo-thieves and falling off a cliff, Mason unlocks the demon system, allowing him to grow strong as he unlocks more skills. And through the system, he discovers that a second war is coming. A war between the humans and dragon bloods and one that might perhaps wipe out the entire human race. And this time around, he might be the only one who can stop it.

**The Reject System** Everyone called him a reject — poor, humiliated, easy to walk over. Then his grandfather died to unlock a secret buried for three generations, and a System with its own hidden agenda chose him. Now every enemy is a lesson, every victory a step toward power, and every clue pulls him closer to the truth: what his family really lost, who took it from them, and why he was the one chosen to take it all back. They discarded him once. They won't survive doing it twice.

"I will be the Godly Sorcerer! For the sake of my mother and my sister!" When monsters from another world invaded Earth through Magic Gates that appeared without warning, the world collapsed into chaos. From the ruins of civilization, the most powerful organization was born: the Knights—an elite force armed with magic forged from materials of the monster world. Humanity's survival now depends entirely on them. I, Ashen Crowe, a lowly F-Rank Knight, lived a life that was nearly worthless—until a tragic accident almost claimed his life. On the brink of death, I was saved by a mysterious entity from the monster world: Zerion, the Strongest Sorcerer from Monster Realm. But that salvation came at a cost— I was bound to the Godly Sorcerer System, a ruthless system that offered only two options: grow stronger… or die.

Across the vast expanse of this world, the system defined greatness, intricate, magnificent conduits of power that separated the elite from the worthless. Klein Slash dwelled in that chasm of worthlessness,cast aside by a society that deemed him lesser. Yet, destiny had other plans. During a perilous expedition into forgotten lands, he stumbled upon a divine archfiend, a being of celestial terror who saw potential in the broken bound granted him a system of legendary magnitude. Armed with the newfound power, Klein now rises from the ashes with an unshakeable resolve to claim what was always meant to be his. Endless wealth, eternal glory and retribution against every soul who wronged him.

Elias Thorne was murdered by the man he trusted most—his mentor, Marcus Vance. But death is not the end. Elias awakens in the body of a broken college student named Adrian Kaelen, with a mysterious System preventing him from revealing who he truly is. Determined to uncover Marcus's secret and make him pay, Elias soon discovers that his own death was only the beginning. And when the truth finally surfaces, the System offers him one final choice: go back in time and live it all again—or let the past remain dead.

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.

In a world of magic and dungeons. Archie Shellford thought he had woken up in a completely different world until he found a mysterious item containing ancient texts from his previous world. When his curiosity peaked, and all his questions weren’t answered, he met a fellow Outlander. Aided by the outlander's bizarre law—The Grimoire, Archie must live his new life and discover the relationship between this world and his old world.

Henry Austin was disregarded by society. He was left with nothing but his girlfriend when she cheated on him with his best friend. Heart broken by the situation he got into an accident only to wake up with a "Wealth System" He was given only one task, which was to spend a million dollars everyday otherwise the system would vanish. "Let's make everyone regret now!"

Zack's life is teetering on the edge, stuck in a relentless cycle of disappointment and setbacks. But a twist of fate plunges him into an extraordinary adventure and he unlocks his very own Zenith System -- his hidden weapon that can push him upwards into society, showing those who hurt and betrayed him that he is not just a normal convenience store worker. With each mission completed, Zack's power and ability rise. As he becomes more adept at using the system, Zack finds himself entangled in a web of alliances and adversaries. It turns out that he is NOT the only Zenith System user, and that the world he entered is not as alluring as he initially thought. With danger in every corner; the payment that the Zenith System demands; and managing his inner demons -- it is taking his all NOT to fall into the same dark abyss that the current users have found themselves in.

The war with the aliens was almost never ending, Human had done their best but that wasn't enough. "The prototype is ready" the head scientist said as he touched a remote control and a humanoid figure stepped in. The humanoid robot that the scientist built was exceptionally taller than a normal human, they were called Spartan. The Spartan which consists of four human not designed by the world greatest scientists, this was the next advancement in human technology but will it be enough for the aliens