Sin System: Demonic Harem After Reincarnation

Ghosts.. Demons.. Monsters.. are they real? You might've heard about them from movies and tv shows. Hell! you might've sensed them under the covers of your sheets. Scared, you might've reported this to your parents as a child who only dismisses this as a childish tantrum and told you that it was going to be alright. Told you to not be afraid.. However should you? Hell no! You should be afraid! because these monsters are not just a figment of your imagination.. they are real! Believe me, I know this because I hunt them down myself! I am Jason Chris.. A Mystique Hunter! . . I retain copyrights to the book cover

Adrian Cole was nothing, a pale bookworm at the bottom of the food chain. Until the day the Likability System awakened, his life took a shocking turn. Every task completed raises his charm, wit, and power… and every failure digs his grave deeper. Every sneer. Every slap. Every rejection. He’ll pay them back tenfold. Now, every classroom becomes an arena. Every hallway, a battlefield. And every bully? A stepping stone to his rise. From ridicule to respect, from trash to king, Adrian will flip humiliation into dominance, face-slapping his way to the top.

On Laurent’s eighteenth birthday, he expects to be awakened to power just like every other person does when infused with their system but his system doesn’t follow the script. Not only was it defective it was also the lowest ranked system making him the weakest. Unfortunately for him, weakness in Elarion was a death sentence. The monsters beyond the borders didn’t care about rankings, and neither did the predators hiding among humans. Cast aside, mocked, and hunted, Laurent soon finds a glitch in his curse: unlike everyone else… he can level up.

Eric seemed born into a world that existed solely to break him, misfortune clung to his every step, and humiliation followed like a shadow. Betrayed, belittled, and forgotten, he trudged through life with no hope of redemption. But just when the darkness seemed absolute, a mysterious System awakened within him, one that promised power, choice, and perhaps even revenge. With fortune finally tipping in his favor, Eric must navigate a treacherous new world filled with opportunity and peril. Is this the long-awaited turning point, or merely another cruel twist in the game of fate?

I never thought betrayal would hit me this hard. I caught my girlfriend cheating on me with the most popular guy on campus. I stood there, frozen, watching as she laughed in his arms—like I never even existed. And when I confronted them, I was the one who got blamed. Me. Because I was poor. Because I had no influence. She didn’t even try to defend me. And when I was at my lowest, when I thought I was about to die, something impossible happened. A screen appeared in front of me, glowing with strange letters. [Spend one million dollars within three days to unlock a greater prize.] It was a system—one that could give me unlimited wealth, but only if I played by its rules. With this, I could have anything. I could crush the ones who humiliated me. I could make them pay. But I quickly realized that money alone wouldn’t be enough. The man I was up against wasn’t just some rich playboy—he was dangerous, and he wasn’t going down easily. If I wanted to win, I had to be smarter. I had to use every trick, every advantage, and push the system to its limits. The question is—do I have what it takes?

Jake’s blind date turns out to be a 250-pound walking machine, Delma Hamilton, who’s also the CEO of a weapon manufacturing company worth in trillions! And she falls in love with Jake at first sight! When Jake's family members arrange his wedding with Delma, he runs away. But Delma doesn't give up on him and advertises his missing posters everywhere! How will Jake survive the loving disaster of a woman who wants him at all cost? Witness Jake’s supremely humorous yet hard-hitting journey yourself!

Ezra Echelon, lost his family and the entire Echelon sect to the treachery of his former master. Reduced to a shadow of himself and branded as a living trash by the tyrannical Serpent Fang Sect that took over the Echelon sect. Ezra lived a life of torment. But in the darkness of this despair, a mysterious voice awakens a power inside him: the Echelon System. It promised him vengeance and transcendence, pushing Ezra onto a brutal path of strength and self-discovery. Armed with ancestral combat techniques, driven by the fire of revenge, he begins his journey to dismantle the oppressive sects ruling his world. Along with Mira, his trusted student, and Halak, the unlikely ally, Ezra must build a rebellion against a world steeped in corruption. He promises to avenge his sect and also set the world back on a right path of truth and justice

If you win a girl's trust, you earn money. But if that trust is broken... the penalty is harsh like being turned into a girl for 7 days. Li Chan, an orphan, had been with his girlfriend, Liya, for seven years. She was his only light in a dark world until she betrayed him for the young master of the powerful *Song Hao Group*. Heartbroken and shattered, Li Chan had lost all hope in life... That's when a mysterious voice echoed in his mind “Activating: The Supreme Girlfriend Making System.” The rules were simple, yet brutal: * Earn money by gaining a girl's trust. * At 100% trust, unlock unique and powerful special skills. * But beware if the trust drops even slightly... suffer strange and humiliating penalties. Now, armed with this bizarre system and a heart craving redemption Li Chan sets out on a new path. To build trust. To gain power. To master love and betrayal. His new goal? To rise above them all and become the Supreme Harem God. *Let the twisted game of hearts begin.*

Gavin’s world took a turn for the worse after the death of his parents, he was adopted by the Smiths family, who showered him with nothing but hate, treating him like a complete outsider. To make things worse—their son Austin has made it his goal to taunt, and humiliate him on school grounds constantly reminding him of his past. The only person who Gavin finds solace in is Angela—his girlfriend. But what happens when Gavin gets betrayed by his girlfriend, who plots with Austin to get him kicked out of school instead of being torn apart Gavin wakes up to find an ULTIMATE REVENGE SYSTEM hooked to his brain giving him the powers to gain revenge on those who wronged him.

Logan Kane works as a janitor at the hospital where his wife is employed. On one fateful day, he discovers his wife is involved in an affair with one of the hospital's top doctors. Instead of remorse, his wife berates and demeans Logan, describing him as a husband who is unable to provide for her. As Logan sat next to the hospital's trash can, a black mask fell onto his head. Without hesitation, he donned the mask. Ding! [System installation complete!] [You now possess full medical expertise and receive a 10-billion-dollar advance!] [Help others anonymously as "The Masked Doctor" and accumulate System Points to unlock new abilities! Never let them know your true identity!] [First task: save the life of the Holden family's eldest daughter who is critically ill!]