Operating System Concepts Essential

One life for another. That is the rule of the Aftergame. Lena was a ghostwriter who lived in the shadows—until a devastating betrayal by her sister pushed her into the path of a speeding truck. She expected the void. Instead, she woke up in a sadistic, system-driven purgatory where the dead must compete for a second chance at life. In this gore-soaked nightmare, survival has a name: Riven. A lethal player with eyes like cold flint, Riven breaks the game’s cardinal rule to save Lena, making them both targets of the system’s wrath. But as they reach the final level, the horrific truth unvails. Riven isn’t a player. He is the Executioner—a sentient program designed to mimic love, only to deliver the ultimate soul-crushing betrayal. But Riven has developed a terminal malfunction: he truly loves her. Now, Lena is back in the land of the living, but the world is starting to pixelate. To save her, the machine that was meant to kill her has built her a cage. And in the Aftergame, mercy is the most terrifying fate of all.

After surviving the brutal apocalypse for ten years, hardened survivor Hayley Reid was betrayed by her base and unexpectedly woke up two weeks before the apocalypse began. Back in time, her useless father and stepmother were still pressuring her to give up her house for her brother and his newlywed wife. This time, Hayley didn’t hesitate to sell them the house for dirt cheap. While they celebrate this great deal, Hayley went crazy stockpiling supplies. With the help of the super base system’s overpowered perks, she built an unbeatable shelter. While everyone else was stuck in zombie chaos, Hayley relaxed in her fortress like she was on vacation. While everyone else struggled to find food, her dog enjoyed a full buffet every day. While everyone else risked their lives squeezing into crowded survivor camps, Hayley’s base stood as the strongest steel fortress in the whole world!

A hell-recycle world within the modern world, designed for death or near-death individuals. With the greenhouse effect resulting in instability in hell, access to hell becomes restricted, and the game keeps the new souls busy while offering them a second chance to return to their lives before death, depending on their performance. A six-digit cash prize is awarded to the winning participants, with rewards ranging from reversed choices and time manipulation to wealth and more. The 100 Doors Challenge System was designed purposely for this world, to keep the growing audience (already existing souls) entertained. Chosen participants must die beautifully at each door. The fancier and more tragic the death, the higher the views. The story alternates between real-world broadcast control rooms, digital death arenas, and fragmented dreamlike worlds designed from Author Willa’s traumas, fears, and regrets and those of the participating ghosts. 100 Doors: Die Fabulously for the Audience. This story contains graphic adult themes, including explicit sexual content, psychological tension, dark humour, trauma, and scenes of coercion and moral ambiguity. It explores mature, disturbing, and emotionally intense situations within a fantasy-system setting. Reader discretion is strongly advised.

Bima is just an introverted, scrawny kid used to living behind a gaming screen and being a constant target for body shaming. But his life takes a drastic turn when he wakes up in a ruined city crawling with zombies. In the midst of the chaos, something even stranger than the apocalypse emerges: the "Single Survival System," which hits him with absurd missions likes maintaining an ideal BMI, getting revenge on his bullies, and landing his first kiss. Every mission isn't just a ridiculous challenge; it’s a matter of life and death. Forced out of his comfort zone, Bima must face his dark past. He crosses paths with Donny, his former bully who is now a zombie, and Kevin, an ex-gym influencer who has transformed into a fanatical cult leader obsessed with the perfect physique and extreme protein intake. Amidst the chaos, Bima meets Lia, a tough convenience store clerk who harbors a deep-seated trauma toward food. Together, they survive nonsensical threats, ranging from zombie food vloggers obsessed with livestreaming death to grotesque mutants lurking underground. But the madness is only the beginning. Bima’s reckless actions catch the attention of a far more dangerous entity: the Master AI Fitness Freak, an artificial intelligence that views humans as inefficient unless they meet extreme nutritional standards. With the help of Riska, an AI with cold, business-like logic that shares a secret connection to Bima’s past, the battle shifts into a clash of ideologies: perfection versus happiness. In a world that worships muscles, protein, and ruthless efficiency, Bima fights back in an unexpected way, using Indomie as a symbol of balance, hope, and humanity.

It all started with her dying and some random ass system coming up to her. --- Counterattacking the female lead Yu Meng: Easy, done, everything is solvable with violence. （￣︶￣）↗　 Female lead sacrificing her own best friend Yu Meng: I will put this bitch in her place. (●'◡'●) Boyfriend-male lead dumping the cannon fodder-me for the Bai Yueguang, white moonlight-female lead: Yu Meng: I am clearly way better than those losers, why do I have to pay attention to them? (✿◡‿◡) Destroying the reborn younger-sister with low IQ Yu Meng: My dearest sister, I don't bite. Come hehe (^◕.◕^) Me, the cannon fodder older sister, is accused by the stupid younger-sister female lead who is reborn, of killing her and stealing her life: Yu Meng: Oops, I robbed off your life again, sorry, not sorry ¯\_(ツ)_/¯ Making the cheating couple suffer: Yu Meng: Ew but ugh, can we take a moment to appreciate my Husband? (❁'◡'❁) Fighting with the imperial harem beauties for the Emperor's love: Yu Meng:.... Help, the Emperor's acting weird. ('･ω･')? ------------------- "Husbanddddd, do you still love me?" "You have been asking the same thing for the 10th time this night (╬▔皿▔)╯"

My wife's family ran on the old logic: sons mattered, daughters were a tax. They called my five-year-old daughter "the cash drain" to her face. On New Year's Day, my wife told me my daughter was donating a kidney to her cousin. I was about to lose it on every adult in that room when something appeared in the air in front of me, a column of text only I could see: [Is this woman seriously the mother? She says it's a kidney transplant, but she actually wants the kid's heart.] [If I had a mom like that I'd have cut her off years ago.]

After completing the quest, I insisted on staying in that world, foregoing the lucrative rewards. It was because I had a happy and perfect family there. My brother was a genius world-renowned scientist, and all his research achievements were named after me. My father was the world's richest man, and all his wealth was under my name. My mother was an extraordinarily talented dancer, but she gave up the stage just to spend more time with me. My family pampered me. I was the most envied pampered daughter in the world… until the day their real daughter, Carrie Langford, showed up at our door. Their love for me vanished overnight. From then on, I became inconsequential. Carrie orchestrated her own fall down the stairs, and my mother was so angry that she broke my leg. I ate a small bite of the cake Carrie threw away, so my father locked me in a dog cage for three days to dine with the dogs. He also made a golden cake for Carrie to make her feel better. Just because Carrie complained that her heart hurt, my brother dug out my heart for her and replaced it with an artificial heart. "It's just a heart. You've always been healthy. Carrie needs it more than you do." Calmly, my brother stood to the side, analyzing the data. "Don't worry, artificial heart technology is already very advanced, so the theoretical survival rate is very high. You won't die." After my soul left my body, I saw Carrie casually throw my heart into a trash can. The long-dormant system was awakened. [Would you like to take back everything you've given them, including your father's wealth, your mother's dancing talent, and your brother's intelligence, in exchange for a chance to revive?]

Kieran Voss is my boyfriend, and his first love has slept with every one of his closest friends. Yet, she still manages to play the innocent little angel in front of him. I plan to expose her, especially after I accidentally uncover her biggest secret. But before I can, Chloe Bennett uses dark magic and somehow transfers all her physical reactions onto me. She's flirting with a man below the stage while I'm giving a company presentation. I can't help but let out a soft moan at the podium the moment his hand slips under her skirt. I become the shameless and indecent woman everyone despises. Despite this, my boyfriend goes against public opinion and proposes to me in front of everyone. Chloe spends ten hours in bed with ten men on our wedding day. Meanwhile, I collapse on stage and tremble uncontrollably in a white gown, my face burning red with heat. I die of heart failure from sheer excitement and carry a tarnished name even in death. As I open my eyes, I'm back to the moment I first discovered Chloe's secret. This time, I close my eyes and say "Don't worry, I swear I didn't see a thing."

A cosmic sentient species that called themselves "Deities" made the first contact with humans out of necessity. 100 Years later, humans have discovered fractures deep within space-time. Inside these fractures, undefined concepts redefine themselves, the rationale is irrational, life is an enigma, and time is tangled. Is it a realm of God or a sanctuary of Cthulhu? Humans call them "Akashic Glitch". A 16-year-old Cadet, Creed Gryffon at the bottom of the hierarchy, finds a forbidden artifact that might have the potential to disrupt the entire power balance.

Blood Demon Vampires are naturally born to be cold-blooded, ruthless, self-centered, and blood-sucking demons every time the sun goes down. Let's bring their kinds to a brand-new story, shall we? What if the vampires were befallen into a cursed system where killing is no longer a formidable solution for their thirst for blood? Instead of merciless killings, they are required to accomplish humanitarian missions in order to survive. One human saved is an hour additional of their lifeline in the human world. The more humans they saved, the longer life they get. Then were measured when this one-of-a-kind woman appeared in their lives. The only woman who awakens their dormant vampire's thirst for blood.