Sin System: Demonic Harem After Reincarnation

I am Kava, an ordinary person as usual. I'm not the chosen person by the system. One day, I got a lot of money. I went to a cafe to celebrate with my sister, Mika. It was then that we came under attack from a chosen system user. I lost the fight and my sister was taken away. I found a Florine system bracelet and I put it on. However, that's not a combat type system and I wasn't chosen. Even the system guide insulted me. What do I have to do to be able to use the system?

Jael Monroe got betrayed by his girlfriend after he received a huge devastation. Angry and unwilling to resign to his fate, Jael looked for avenues to awaken his powers in this fierce world that dictates survival is for the fittest. When he was down in despair, he acquired the ultimate bloodline system that helps him grow stronger by absorbing others' bloodlines. With the powers granted by the system, Jael sought revenge while growing stronger enough to decide his fate and the fate of those who oppose him.

When a sudden supernatural storm wreaks havoc on Griffin City and releases mysterious monsters from portals, Mason risks his life while trying to save his foster brother, and fails, but is beaten to death by a bully. At the brink of death, he awakens a system through an old necklace given to him by his father before he and Mason’s mother were killed by a shadowed figure during the first occurrence of the same storm that dawned on their city ten years ago. The system grants Mason the power to respawn after death infinitely, yet his power is mocked as a useless one by those who also awakened superpowers during the storm. However, there's more to his powers than he even knows. With the system, his abilities are limitless. He decides to groom his powers when he sees his potential and fights against the monsters that appeared from the portals. In the long run, as he unravels his powers, he becomes a prize for envious power hungry supernatural beings he never knew existed and decides to hide behind an alter ego known as “Devil's Spawn”. He joins the secret Protectors’ Guild to protect innocent citizens when he realizes that his foster family have no way to protect themselves. Things take a turn when his foster sister goes missing. He goes in search for her and crosses paths with the shadowed figure that killed his parents again. His memories are triggered and he's hellbent on knowing who the shadowed figure was. Revenge becomes his game. However, he soon realizes that there's more to the supernatural storm than it meets the eye. Will Mason choose revenge or to save the world from the hidden dangers lurking behind the portals?

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.

Betrayed by his own girlfriend, then framed and eventually hit by a car. He fell into a coma for ten days. Right when he woke up, Ryu Bastian found something floating before his eyes. He thought it was a hallucination until finally several real rewards were given, making him realize that the System was not mere illusion. With the system, he slowly rose. Avenging the humiliation and dominating the world.

Meet Leo White, a hardworking young man drowning in debt. When he crosses paths with his new boss, life takes a nightmarish turn. Leo's job becomes a prison, and he can't quit because his boss holds his future hostage. Leo clings on to his girlfriend's love, but her shocking betrayal shatters his world. Which is the system descends taking everyone to the new world. Leo becomes the first to sync with the system and gets a title. [Apocalypse Baby] With it, he rises from underdog to unstoppable in an epic urban fantasy world. A world where power is everything, and vengeance is his driving force.

After working hard to provide for his wife, Felix was not only dissatisfied but also betrayed! His wife ran away and he had an accident while trying to chase her. As a result, he was rushed to the hospital. But when he wakes up, he finds an unfamiliar voice with a transparent screen greeting him. The EasySync system has found an owner! Felix's life changed drastically. A new journey of doing various missions to become rich now begins!

Maximus Akkris Gayle was a poor student, abandoned by his father's family. His girlfriend betrayed him, making him lose his temper and almost caused his own death. Not just that, his girlfriend left him for his step brother, Daniel Akkris Gayle. Maximus angrily attacked the Kera kingdom heir, making Daniel unleash his ability on him. Knocked out cold, he was presumed dead by his brother and his girlfriend showed no remorse towards what had befallen him. However, that was to be the end of his misfortunes because he awakened a system, The Ozilla Gold System which supplied him with money, and plethora of abilities endlessly. In exchange, Maximus will perform missions to earn system coins, which can then be used to acquire more wealth from the system. He can finally take revenge on those who trampled on him, dominating the world while helping the needy. **** But the endless supply of money didn't come free. The life-threatening missions which the system sends him on were objects of eternal nightmares to the hero, who suddenly found out that the fate of the entire world rests on his shoulders. Join Maximus Akkris Gayle in his thrilling but frightening adventures and face-slapping missions, having a wonderful time is definitely assured. THE OZILLA GOLD SYSTEM...

[kill four vampires for 4000 Wicked Points... [Failure to do so will wipe out all life forces on Earth.. Prepare for an adventure like no other! Born again with memories of his past, Benjamin Reeds is on a quest for revenge, justice, and self-discovery. After striking a deal with the enigmatic Vanessa, he uncovers the dark secrets of the government's sinister involvement in his mother's untimely demise, and sets his sights on righting the wrongs of the world. As Benjamin trains and gains allies on his journey, he discovers a supernatural power known as The Wicked Schemes System, a gift that he must master to defend against wicked-minded people. His battles against the Qilin and other powerful supernatural creatures, such as Dragons and kraken, will leave you on the edge of your seat! With each skirmish, Benjamin develops his skills and learns more about his place in a strange new world. In a final clash of epic proportions, the king of all supernatural creatures, the Qilin, will meet his match in Benjamin Reed. But this is only the beginning, as countless other supernatural beings wait in the shadows, ready to challenge him further. Join Benjamin Reed and his allies as they take on the world in a thrilling, action-packed ride that will leave you breathless!

🏆 ["Silver Prize" and "New Rising Star" in System Activated of "Meganovel Biannual Writing Contest"] 🏆Transmigrating into a cultivation world, Wushu Shengli found himself in an outer disciple’s body! With his trash cultivation talent, he feared that he wouldn’t live long in a world filled with young masters, hidden powerhouses, and immortal gods who could overturn the world! Fortunately, his golden finger arrived in time! [Cultivation Sign-In System has integrated into the host’s soul!] -Ding! [Since it’s the host’s first sign-in, the host will receive a random Supreme Grade reward!] -Ding! [Sign-in Complete! Host receives Supreme Cultivation Talent!] After receiving an unrivaled cultivation talent, Shengli truly felt invincible in the cultivation world! Cultivation resources? Just sign-in! Receive a thousand-year-old spiritual vein! Cultivation technique? Just sign-in! Receive the inheritance of a sword immortal! Cultivation physique? Just sign-in! Receive an Immortal Body Physique! Young masters? Just sign-in! Receive a Face-Slapping Manual 101! Jade beauties? Sorry, women will only affect the speed at which I draw my sword! “I become invincible after signing in!”