sin system: demonic harem after reincarnation

Betrayed by his lover and best friend left Reynard devastated, when he thought they were the reason he could survive in this cruel world, they confirmed that the world was never in his favor in the first place. Because of his disappointment, Reynard jumped off the balcony of his apartment, killing himself. When he wakes up, he is no longer on Earth or in the afterlife, but in the world of Isekai, a world filled with magic and all the nonsensical things that happen in it. How can Reynard survive in a world that follows the law of the jungle, where the strong are kings and the weak are losers? He has a system that can make him the strongest in the Isekai world, the Supreme System. [Supreme System activation process] [Activation complete!] [Name: Reynard Fillmore] [Age: 7 years old] [Level: 0 (0/10 EXP)]

Three years ago, an accident caused me to lose my memory and powers, leaving me with no choice but to marry into the Cooper family as a live-in son-in-law. It wasn't until I witnessed my wife's infidelity that she presented me with divorce papers. On the day of our divorce, under the tree at the crossroads, a beautiful girl was waiting for me...

Riley lived in a world where 90% of the people were awakened, but he wasn’t. With a troubled past and recurring dreams, he finally decided to move on. However, when he unlocked a system that made him awakened, he had to chase his dreams while uncovering the truth about his past.

In a world where the future is dictated by an omnipresent System, Ethan Parker finds himself at rock bottom. Once a promising tech innovator, he loses everything after a devastating scandal. With no hope in sight, he’s offered an unexpected opportunity: a second chance from the very System that governs every aspect of life.Transported back in time to his earlier self, Ethan must navigate familiar challenges, armed with knowledge of what lies ahead. As he balances between redeeming past mistakes and seizing new opportunities, he uncovers hidden truths about the System's control over society and its darker agenda.As Ethan embarks on this journey, he faces moral dilemmas and unexpected allies, including a mysterious rebel named Lila, who reveals a world beyond the System’s reach. Together, they must decide whether to conform or fight back against a seemingly all-powerful entity.

Shortly before the field trip to Drada, Jimmy is dumped by his girlfriend, Anna Campbell, who feels embarrassed for having such a poor boyfriend as him. The girl even openly flirts with Dwayne, the boy who often bullies Jimmy at school. Worse yet, Jimmy witnesses them commit lewd acts on the bus, on the way home from Drada, which then leads to disaster. The bus falls into a ravine, and Jimmy, in a dire situation with a broken spine and leg, accidentally accesses a strange system which transports him to a realm called Icalaterra. This system allows one to collect money quickly through several hunting quests. Since then, there has been no bullying, insults, and mockeries, without any consequences.

A fantasy novel where a young depressed man decides to part away from the world. Unfortunately fate played a joke and instead of death, his soul was transferred to another world. He rejoiced thinking that his family will not be burdened by him but one day a voice said "Reach the peak of the world to return back to your real world." Then an image of his family members who were in hospital was shown. Again a voice was heard "The Catastrophe will soon befall Earth. Remaining days 24. Seeing that he gritted his teeth and decided to return back to his world. After countless years of struggle he finally succeeded in returning back to his world. It had been 9999 years for him but only an year has passed in the real world. Now his adventure begins. His lover who never responded to him was living with his family taking care of him. He knew most of the things as he got to view the real world once every thousand years.

"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?

Jed Hunter only has one year left to live on this alien-invaded Earth. So, he creates a bucket list of things he always wanted to do. Except he is eaten by a monstrous alien and... [System activated.] [Consume alien core to activate Ultimate Skill – Devour.] With Devour System, Jed can extract alien’s strength and unique powers to use as his own. He could eradicate all aliens on Earth before he die. But, what fun is there if he stop crossing off his bucket list for it?

Ding! [The Greatest Wealth Master System has been activated] [Mission: Slap your father and mother-in-law] [Success reward 50 million dollars] [Failure penalty, you will be electrocuted to death]. [Time limit 15 minutes]. Erland Colvin is a loser, a useless husband, and a trashy son-in-law to the Thompson family. His life has been so bad that he has suffered from poverty since birth. But the sudden appearance of the greatest wealth system changed his life. All fortunes began to favor him. Even money flowed into his account.

In the land of Nova, a prophecy foretells the coming of a great warrior who will unite the land and bring peace to the world. However, the warrior has never been found. One day, a young man named Arion is reincarnated to Nova with a Nexus system.