Sin System: Demonic Harem After Reincarnation

Allen lost his job after being wrongly accused and his sister was being adopted by a loan shark who he had loaned money from and wasn't able to pay back. He is left to go beg the people who had abandoned him but got humiliated. His mother died too, taking away the hope he had. He felt lost and wanted the world to end. He was given a sunglass by an old woman which he hesitantly collected. Wearing the sunglasses, he discovered it was an advanced system that would bring riches to him. Now, he would get back to everyone who made his life miserable. But, there was a limit to the sunglass power of which he wasn't aware.

"You lousy guy! What exactly can you do in this world, huh? You can't even do this!" The restaurant owner's anger grew when Sean Hodgson accidentally spilled an order that was about to be delivered to a customer. Sean could only bow his head deeply with great guilt. This was the thousandth time Sean had been fired from his job. He was known as a loser man. Because he was an orphan, poor, stupid and weak. Everyone scorned him including the woman he loved the most, Sarah. Sean was almost desperate because of the injustice in his life. However, suddenly an Overpower system appeared that offered Sean to become a real strong person. The curious Sean immediately chose the yes button. Until finally a world situation was reversed. Where the attack of the Giant Ant named Megant Monster who wants to destroy human life. Can only be defeated by Sean. Can Sean carry out his mission? And what is the relationship between the Overpower system and Sean's parents?

Sean Stevens, a university graduate struggles to find a job opportunity. He ends up doing several part-time jobs, in order to earn enough money to be able to support his family. His parents own a small grocery store, but being that it is located in a very deserted street, it is not doing that well. His younger brother just joined campus, and the amount of money that is required to pay for his school fees is more than what his family can afford. The family is already in debt during the time that he was still in school. Some of the money had been taken from loan sharks, that keep on haunting the family. On a particular fateful day, Sean ends up picking a coin when he was coming from a construction site. The moment that he picked the coin, something baffling happened. A holographic screen suddenly popped up in front of his vision, while a mechanical voice echoed in his mind. [System activating... System activated.] [System binding in progress... System binding successful.] [Welcome host to the Ten Times Multiplier System: Investment Rebate] The moment that the system was activated, it was the very moment that his entire life changed. [You have spent $2 on food. Investment detected. Rebate activated. You have received $20. Additional reward, basic chef skills.]

Victor Valentine's life couldn't be any worse: releasing an album that didn't make any official charts after three weeks of tracking, being abandoned by his girlfriend, chased away from his record label, and being beaten by the man whose girlfriend cheated on him with, to the extent that he was hospitalised. Everything changed when Victor Valentine heard a robotic voice in his head: "Do you want to become an entertainment god?" "Yes" Binding.... 10%, 50%, 80%, 100% Complete "Host, you now have the potential to be an entertainment god."

It sucks being a shut-in Neet. You play video games all day long, you have no real friends, you gained horrible weight and you're a hopeless virgin. Sooner before you know it, life gets really boring and lonely. Such was the life of Arthur. In his mid thirties, he realised his life lacked meaning. He was bored and wanted something new. That night he shut his eyes to sleep and never woke up. When he woke up, he found himself in a different world. In this world, there are no gods nor heroes. The demon King ruled the world with an iron fist. Without gods the world wouldn't function. Arthur gained the rarest system of all time—The godleveling system. His only goal is to level up to become a god but the demon King knows something that Arthur doesn't know.......

Ace was trapped in the cruel fate of being poor and oppresed student. He endured a barrage of insult and criticisms, facing constant verbal assault from all angles. To make matters worse, he was dealt a heart-rending blow as his lover betrayed him right before his very eyes. Until one day, his life changed substantially, [Ding!] [Host Found, VIP System activated] [Make you a VIP Person in the world, destroy your enemies, and also get the woman you want to further establish DAI TECHNOLOGY as the best technology to change the world as you want.] [Brooklyn Central Bank] The account balance with account number XXX18 is USD 20,000,000,000,000.00. This point made Ace's early life turn pinnacle of the hierarchy.

Miracle Academy was built to train the elite—those gifted with power, lineage, and privilege. But Richard Sol, a Hollowborn, has none of these. Marked by a forbidden core and a past that should have erased him, he is destined to fail. Yet, when the academy’s brutal trials begin, Richard does the impossible—he survives, outwits, and defies every expectation. As whispers of his unnatural abilities spread, powerful enemies take notice. The ruthless elite want him crushed. The abyss watches, hungry. And buried deep within him, an ancient force stirs. To claim his place, Richard must embrace the truth of what he is—a Tribrid, born of something far beyond mortal comprehension. In a world where strength is law, and the weak are devoured, Richard will either rewrite the rules—or be consumed by them.

After being cheated on, Willy Morgan found himself in the midst of a fierce storm, only to gain an all-encompassing system that would turn his life upside down! Armed with eight extraordinary abilities, Willy swiftly secured his place in the world and embarked on a journey to become the wealthiest man alive. Divine blessings? Check! Precision sign-ins? Absolutely! Perfect lottery wins? Got those covered! Advanced technology? A must-have! Forecasting sudden riches? Easy! Unbeatable trades? You bet! Potent curses? Brilliant! Enhancing personal skills? Unstoppably powerful!

Betrayed. Blinded. Rebuilt by a system that feeds on vengeance.** After being left for dead, Shepherd Nexon awakens with a deadly combat system and a $10 million blood-debt to repay. Every mission earns credits. Every emotional bond comes with penalties. His rising empire is calculated. His lovers are ranked. And one wrong move could erase them forever. With a hidden heir, a poisoned sister, and enemies evolving into monsters, Shepherd must choose: Follow the system — or destroy it! He was their victim. Now he’s the Underworld King and the system’s greatest threat.

Ben Akoni, a struggling writer nicknamed "Shrimp Boy" for his dead-end job at a Miami seafood shack, lives under the thumb of humiliation. His girlfriend leaves him for a billionaire, his landlord threatens eviction, and even his literary aspirations are mocked by a tech titan. Just when his world seems hopelessly bleak, a mysterious Tycoon System grants him a peculiar power: turning virtual slaps in a mobile game into real-life rewards.