Sin System: Demonic Harem After Reincarnation

"Yeah, listen up. I want to order a pizza, but don’t screw this up, alright? I don’t have time for incompetence from some broke ass pizza delivery guy.” That's the first thing Niko heard when he answered the phone, “who the hell orders pizza like that?” He sensed the arrogance from whoever was behind that thick voice over the phone. But he ignored the rudeness and asked him “Sure, sir. What can I get for you today?” “Dumbass I already said I want a large pizza. What else do you sell if not pizza?” Things like this always made Niko hate his job, he'd been working in that pizza shop for almost a year and he never got used to all the insults and harsh treatment. But he was willing to keep enduring all of it as long as it fetched him some money to take care of himself and his girlfriend Vikkie.

Ramon had just ran away from home. He had his father, Andreas sent to prison for bullying his smoking addictive mother since he was a little boy, but now that he is grown up, he is the bread winner of his family and even had to provide for his mother. Roseline, decided to be a nun just to help Ramon study after he got a scholarship into a prestigious university. Ramon was happy thinking he could get rich and study just to change his poor fate and help his mother. He met with Chloe who was infatuated with his cold attitude but later she made her intention known. She dated him because she believed he was rich. When Ramon knew she left him for Xavier, who has his eyes on Chloe for a long time. Xavier even had Ramon crippled and just when he thought his life was over. A gaming system appeared on his phone promising revenge and not only that but wealth beyond his wildest dream.

I thought love was supposed to be my escape—but it became my downfall. The girl I gave everything to, the one who promised forever, betrayed me with a smirk and a kiss... meant for someone else. Not just anyone—but the heir of a billionaire empire. And when I walked in on them, shirtless and laughing, I wasn’t just heartbroken—I was humiliated. She didn’t even flinch. She just said, “You never had a chance.” And the whole campus agreed. Poor. Powerless. Pathetic. That was me. I hit rock bottom that night. I wanted it all to end. But the universe had other plans. A strange light filled my vision, and suddenly, a screen appeared before me: [Activate the ‘Destiny System’? First Task: Spend $5 million in 72 hours. Rewards Await.] At first, I thought I was hallucinating. But then the money came. Real. Tangible. Endless. Now, I have resources that could shake the world—but so do my enemies. And they’re not just rich. They’re ruthless. Every step I take, someone tries to pull me down. But I’ve changed. I’m no longer that helpless kid begging to be loved. I have the system. I have the drive. And I’m not just going to take revenge— I’m going to rewrite the game. Not only am I having the power of the system but I am also the lost heir to the system wealth. The only question is: What will I lose in the process? Do I have to take revenge or seek out something more than just teenage revenge?

Shawn's life seemed like a joke. He wasn't living well and was always suffering. Until a woman appeared in front of him, and said they should get married. That triggered something Shawn could never have imagined. The man received a notification. The God level selection system... what will happen next?

His wife approached and married him because her family thought he was part of the city’s most famous and wealthy family but when his wife and her family found out that Andrew was a bastard child, they mocked and looked down on him. Due to him being poor, everything he knew and loved disappeared. Beaten to death, Andrew was left with no breath until he was struck by a mysterious force of lightning granting him a system. [Congratulations Andrew Raine. You have been selected as a host for the TRILLIONAIRE SYSTEM] A ding and a notification bar was all Andrew needed to change his life. With the force of the power granted by this system, He would trample on everyone who has ever mocked him, rising to the top with great speed.

What happens when you receive a system after a heart-break. Betrayed and humiliated by his girlfriend to a point of depression, Tristan's saw nothing good in himself, being called poor and charged of an obscene-related crime only made matters worse. However in his emotional state, Tristan could only hear a mechanical voice inside his head, alas! it was a system. [ You have received a role play system] ......."I have a technology that no one even knows exist!" .......

Evan Smith, while working part-time at a convenience store, personally delivered condoms to his ex-girlfriend and her new boyfriend. Still reeling from the emotional blow, Evan was hit with a barrage of bad news. Feeling powerless, Evan had repeatedly come to understand the critical importance of money. And at the height of his despair... "Ding!" "Ding!" "Ding!"... Why does the bank keep messaging me? Why is my account balance continually rising? [The Super Rich System has been activated] [Welcome, new user, Evan Smith.]

Alexander Albert is treated like trash by everyone around him because he is broke. What happens after he realizes that he is worth more than he ever could imagine?

Matteo De Cannio's life took a drastic turn when his parents, Mr. and Mrs. De Cannio Militao, passed away in a tragic road accident. Left in the care of his wicked stepmother, Lily De Cannio, Matteo's life became a living hell. His stepmother, a notorious drug dealer, mistreated and bullied him relentlessly. Despite the hardships, Matteo's fortunes changed when the Italian Government offered him a scholarship to study at a prestigious university. However, his stepmother refused to let him accept the offer. Forced to sell his stepmother's illicit drugs on the streets, Matteo's life took a devastating turn when he was killed by the police. But fate had other plans for him. Matteo awakened in a London hospital with a mysterious System that promised him unimaginable wealth and power to exact revenge on those who wronged him. His stepmother, who had killed him, was at the top of his list. With his newfound wealth and fame, Matteo became a force to be reckoned with, establishing big companies around the world. But as he plotted his revenge, he couldn't shake off the feeling that his stepmother's wickedness would not be easily defeated. As Matteo navigated his new life, he wondered: Would he survive his stepmother's evil schemes, even with his newfound power? What would happen when Mrs. Lily De Cannio discovered that Matteo was alive? The battle for revenge had just begun.

He was a man who had nothing to his name nor anyone he could call a family. Just living as a corpse without any goal. He had lost all motivation to live and was just pushing the days because of a promise he made. 'Make sure to enjoy your life' He remembered the face of a woman who gave up her whole life for him. He looked at the rope in his hand, feeling disgusted at himself. He felt like his life had no motive. But that's when it happened. [The Necromancer System has chosen you] [The system is recommending you climb the Tower of Myth] [If you successfully climb to the top of the Tower, any one of your wishes will be fulfilled, no matter what it is] [Do you want to take the test of the Myth Tower?] [Yes/No] A reason for him to live appeared. The story of the One who had regained his will to live is about to start....