The Great Demon System

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.

For Arga Pratama, being an honest police officer in this city feels like living in hell. Time and time again, he uncovers solid evidence to put powerful criminals behind bars—only to watch it all end up in the trash. The suspects? Still partying in luxury bars, protected by powerful “insiders” and bottomless wallets. The breaking point comes when Arga is forced to turn a blind eye after the son of a high-ranking official kills someone in a hit-and-run. Sick of being nothing more than a “guard dog” for corrupt elites, Arga slams his badge onto his superior’s desk. He believes quitting is the only way to remain human. However, the world is far from merciful. That very night, Arga loses the most precious thing in his life. His wife suffers a miscarriage after receiving relentless threats from the syndicate he had been investigating. In the cold hospital corridor, Arga can only sit in silence, staring at the ruins of his existence. No job. No authority. And now… no child. At his absolute lowest point, a floating screen suddenly appears before his eyes: [The Ultimate Detective System Activated.] [Target Detected: Those Who Believe They Are Above the Law.] Arga quickly realizes this is his only chance to rise again. Armed with a system capable of uncovering even the faintest traces of crime, he begins operating as a shadow detective. He does not just want to fix his shattered life—he wants every bastard who ever laughed at him to experience what true justice really means. They once bribed the police to erase evidence. Now, not a single secret can escape Arga’s eyes. Because to Arga, justice no longer needs laws or articles— It only needs flawless execution.

[Warning: This book contains a lot of sexual explicit content. R18] Coyote Watkins’ life has been nothing short of a roller coaster. From a street kid adopted by his idol—NASCAR legend Louie Watkins—to a blacklisted former champion barely scraping by as a mechanic, he’s seen it all. Coyote hit rock bottom after being attacked by a client’s husband for allegedly assaulting his wife. With his car nearly destroyed and his spirit shattered, an impulsive and suicidal Coyote enters an underground race. He wins—but nearly dies in the process when a blinding light zaps into him, ejecting him from the car just moments before it explodes. A few minutes later he awakened to a cyan screen and a voice in his head. [The criteria required for activating the Speedracer Harem System have been fulfilled.] [System synchronization with host commencing.] [Synchronization complete. Congratulations. You have been given a chance to achieve your goal of beating Louie Watkins record.] Join Coyote as he tries to be the greatest NASCAR driver in the world, while having so much fun with women.

Smith lost his parents in a car accident, and his brother died some days after. He was left to take care of his sister, who was suddenly diagnosed with a brain tumor. Smith didn't have any money, and his wife would rather spend money to buy a bag than save his sister's life. He was looked down upon and teased in front of all families. When Smith thought it was all over for him, something surged within him: {Congratulations! Welcome to the lavishing system. Warning, you must spend 10 million dollars every day, or else, the system will depart}.

Raymond Cooper was just a spy—until the skies split open. Alien invaders, the Morphidons, shattered Earth in a single night, and Ray became their top target. A shard of alien tech changed everything, fusing with his body to unlock the Apex Predator System—a power that transformed him from an ordinary man into humanity’s ultimate weapon. Thrust into an alien world to evolve or die, Ray returned to find Earth unrecognizable, its survivors waging a desperate war against extinction. Now, armed with powers he barely understands, hunted by galactic forces, and driven by the promise of survival, Ray must rise as humanity’s last hope—or see his world consumed. This is the story of a man who became a legend. This is the Apex Predator System

Raihan's love confession to his dream girl ends with a deafening rejection, followed by soul-crushing laughter in the middle of campus. At his lowest point, the Deathly Cringe System activates, demanding he accumulate "cringe points" by performing a series of the most awkward public acts. From stuttering to strangers to becoming a living campus meme, Raihan is forced to face his greatest fears for these absurd missions. Each "embarrassing mission" gradually dulls his shyness, builds courage, and even uncovers unexpected potential within him. But what is the true purpose of this cruel system? And is Raihan ready to confront the greatest trauma that has bound him in the past, to complete all this madness? An absurd journey towards self-acceptance, proving that sometimes, shame can be the key to true strength... and perhaps, unexpected love.

Damn! Life just dealt Ashton Myers a bloody good hand. Getting dumped by his lover, Ashton experienced a life-threatening accident. When Ashton awakened, he found himself connected to the Reality-Changing System.

Marcus West was about to swallow a handful of pills when someone started pounding on his door. Three years ago, he had everything. A restaurant he built from nothing. A wife who believed in him. A future. Now he's got $186,000 in medical debt, a dead wife, and a condemned hotel room in the Tenderloin. Then Jerome shows up bleeding, holding a USB drive and gasping: "They did it to you too. Here's proof." Turns out Marcus's life didn't fall apart by accident. His restaurant was sabotaged. His wife was a federal agent murdered for protecting him. His father was killed for knowing too much. The same people destroyed all of them. Now Marcus has something they didn't expect: the Karmic Debt System. A power that turns suffering into currency. Every nightmare, every loss, every moment of pain—it all has value now. And Marcus has been suffering for a very long time. They took everything from him. He is about to take it back and with interest. Can Marcus tear down the empire that destroyed everything he loved before the debt consumes him? Or will his quest for vengeance cost him what little humanity he has left?

Mavis Donard endured three years as the Sonar family's live-in son-in-law, treated worse than a servant. When his wife Charlotte handed him divorce papers while embracing his cousin Lugar, the family revealed their ultimate betrayal, as they framed him for embezzlement and ordered his execution. Left dying in an alley, Mavis awakened the Retribution System, which granted him powers based on every humiliation suffered. With his family's hidden fortune recovered and vengeance protocols activated, Mavis returns to systematically destroy everyone who wronged him, starting with THE SONARS.

Noah Bennett was nothing but a “useless” son-in-law, mocked, slapped, humiliated. His wife cheated, her father cast him out, and everyone believed he’d finally disappeared for good. But fate had other plans. A mysterious black card, left behind by a dying stranger, transforms him overnight into a millionaire and unlocks a mission titled “Ashes of the Mega 7.” He must take down seven of the most powerful families secretly controlling the country’s economy each responsible for his past suffering, his parents’ mysterious death, and the corruption that rules the city. The first target? The Lewis family, his ex-wife’s bloodline.