Sin System: Demonic Harem After Reincarnation

Elliot Kane is a scrawny, introverted college freshman at Crestwood University, relentlessly bullied by the campus elite: jocks, frat boys, and social media influencers who thrive on his humiliation. One night, during a particularly brutal encounter that leaves him battered in a dark alley, a mysterious cosmic anomaly binds an alien neural entity to his mind: the Death Mind System. This system grants Elliot a chilling power: by knowing a person’s true name and whispering their death in his mind, he can kill them instantly, their body collapsing as if their soul were snuffed out. No evidence, no trace; just a thought, and they’re gone. But the system isn’t just a weapon; it’s a living, evolving intelligence that feeds on death. Each kill upgrades its capabilities, unlocking new mental abilities: telepathic manipulation, memory siphoning, even glimpses into the victim’s final thoughts. The more Elliot kills, the stronger and more addictive the system becomes, transforming him from a timid outcast into a calculating force of vengeance.

" I can't believe you would do this to me, after everything I have done for you," Frederick said with a sad face looking at Davina Davina was one of the hottest girls on campus and she had used Frederick for her self-gain. She made him do most of her assignments and also do her laundry. " Do you think I would love a guy like you? You are broke and can't afford me." Davina taunted as she looked at Frederick who looked at her as she cheated on him with Jonas. " Scram off! I don't want to waste my time having to deal with paupers like you." Jonas shouted at him Frederick was at his weakest point. He woke up the next day feeling rejected and took his phone. A mysterious app downloaded itself and automatically launched. Asking Frederick to input his name and play the game. " Woah! This is so cool." Frederick replied as he added his initials and played some games. After winning the first level, a message was shown on his device. " Will you cash out a sum of $450000 or do you want to keep playing? You are to spend all the money within a week if you want to keep playing." Frederick was lost, he decided to cash out the money and an alert of $450000 was credited to his bank accounts. Will Frederick use the gaming system to his advantage to defeat Jonas and get his girlfriend back? Read about how the system served as a life changer for Frederick as he tackled the most dangerous guy on the school campus.

Persues Damon had always been ridiculed all his life. Being a college student and a real life loser. He was unable to take care of his family and was always oppressed by rich people. The girl he loved the most cheated on him with a rich man and murdered him. Only for him to awaken with a system. He is going to make them pay, alongside everyone that hurt him. [Ding!] [The System finally recognized its host.] [You have two choices: A, Accept the system and live. B: Reject the system and die miserably.]

Brooke Rancher was known as the harbinger of misfortune. Everywhere he went, disaster followed. They believed his presence brought them bad luck. But Brooke turned his luck around when he found a fortune-teller cookie and ate it, then he was now the host of THE FORTUNE-TELLER SYSTEM, where he saw threads of destiny, predicting outcomes with uncanny accuracy. People began to seek him out, eager to know their futures.

[System activated] [I will make these two worlds and their creatures bow at your feet, my master] [Humans, elves, dragons, monsters, dungeons, kingdoms, wealth, power and everything. I will dedicate them all to you, my master] Raff Petterson, a young man who lived a miserable life in the real world. Failure and humiliation were all he got. But the hope for revenge came when the system inside his body activated. He can go to another world and return to the real world with his skills. He doesn't know, all the missions he undertook would lead him to the struggle for the strongest throne in the real world and the other world.

Thenma, a poor and weak young man; worked hard for him and his little sister. They were orphanages, making them insulted and bullied. The weak Thenma would keep quiet, and his brave younger sister would always protect him. But Thenma's life was collapsed when tragedy striked his sister, and his lover gave nothing but a stab in the back. A chaotic life made Thenma think death would be better, but a mysterious and foreign system chose him to become The Next Greatest Revenger. "Count to ten of your peaceful life before I come and destroy it like a disaster. I am The Greatest Revenger!"

[System Awakening! Daven King, do you want to turn your fate around? You have five seconds to accept the System!] [1…2…3…] All Daven could understand was getting a new life and that was all that mattered to him at that point. “Yes!” He responded. [The Rich Medical System has been installed successfully!] ___ Daven King, a poor and bullied cleaner became a medical genius in one night. He was faced with the ability to take and save lives and when faced with his enemies, he had the chance to make them suffer. However, his sudden skills came with a price, would he be able to keep them or lose them because of a diehard enemy?

In the bustling heart of Paradies City, the mere mention of the name 'Justus Wallace' reverberated through the air, for he was the son of the city's wealthiest family. Yet, beneath the veneer of opulence and privilege, a secret of haunting magnitude shrouded Justus. In the cycle of rebirths, Justus has perpetually assumed the role of the antagonist, locked in a relentless struggle against the woman as the story's genuine hero. Numerous defeats have left him weary and disheartened. However, this time, a fortuitous discovery leads him to a system presenting two choices: He must either conquer or eliminate the female lead successfully. Upon achieving either of these objectives, the seemingly endless loop will finally come to an end. [Reminder: Harem is not allowed. Once you choose a female lead as the target, other female leads' storylines cannot proceed until the use of the save function. Only the newly chosen heroine can be pursued while locking the storylines of others.]

The human race has been at war with the vicious blood-thirsty humanoid-alien species that had appeared because of the illegal experiments that took place in the world many years ago. Just when they thought they had successfully annihilated them all, they began to rise again. This time with the sole purpose of taking over the entire human race. It is at this cause that Angel Academy, a military-like school was built. For years, it helped the world by building up potential ability users in preparation for the upcoming great war. -------- Max isn't able to awaken any ability and even knowing the fact that he'll be ridiculed by his mates, he was sent to the Academy to study. Every day his life is made a living hell by everyone around him, he was turned into a laughing stock. One day he is driven to a part of no return and is on the verge of dying but that is when he met his saviour. He is given a system that will help him grow and become an unrivalled demon lord.

Benjamin Black, living as the pathetic son in law in Black Manor, was greeted with a surprise when his wife withdrew all his life savings to spend on another man! With no way to continue to pay for his sister's medical bills, and being kicked out of the black manor by his mother-in-law, he heard a voice in his head after giving some change to a street beggar. "Congratulations. World Domination System has been initialized." Now Benjamin is given as much money as he needs, with only one condition: He must dominate this world!