Ultimate Scheming System Manga

David Lidell vomited blood and passed out when he was enraged by his rival in love. When he woke up, he realized he had obtained a super lavish system, and it was asking him to spend a quadrillion dollars. After that, David embarked on the journey toward the pinnacle of his life. David, “I’m not going to pretend anymore. For your information, I am a quadrillionaire…”

On a certain day, a meteorite fell from the sky and formed a terrifying radiation, causing drastic changes to Earth. Countless regions experienced mysterious phenomena and soon, all the creatures on Earth, plants and animals alike, mutated into dreadful "monsters". Humans were not an exception; those who were lucky enough awakened to supernatural powers and gained extraordinary strength. 　　In order to resist the threat of mutant creatures and extraterrestrial life on the earth, the supernaturalists formed the Superhuman Academy and Ryan Smith was one of the lucky ones. Unfortunately, he died in a war of alien invasion. 　　Surprisingly, Ryan was reborn, reborn ten years ago, just at the moment when he entered the Superhuman Academy. The difference was that he had a mysterious investment system, as long as he invested in people and things crazily, he would get back more powerful power! 　　And his first investment object was his Boyhood Sweethearts, Vina Anderson, the sexy woman who wanted to take away his mysterious treasures. How will Ryan choose?

"System, I request to leave the mission world." The summoned system quickly appeared. "Ms. Young, your request has been approved. You have half a month to say goodbye to your family in this world." With that said, the system disappeared again. Andrea Young paused for a long time at the mention of the word "Family" before slowly looking toward the family photo on the table beside her. In the photo, her husband and son were each lovingly kissing her cheeks. The happiness captured in that moment suddenly left her stunned. No one knew Andrea was on a mission. Ten years ago, the system brought her into this world to win the heart of Gabriel Fulton, the crown prince of Capital City. They went from attending school together to the wedding altar over the past decade. She not only completed her mission, but also fell in love with the target of her mission.

My younger sister and I unlocked our systems on the same day? The setting? The nation decades ago. She went for the learning system and married an intellectual. I had no choice but to go with the useless storage space system. Then, I was forced to marry a thug. A very rude and crass one at that. Thanks to the storage space system, I got through a famine and became the village's richest person. My sister's learning system was useless, and she almost died of starvation. Driven by jealousy, my sister seduced my husband and slept with him. To get my wealth, they came up with a plan and pushed me down a cliff. When I came to, I realized we'd returned to the day we awakened our systems. My sister shoved me away and picked the useless storage space system. "Move, you bitch! Now I have your system! I'll survive the famine and get rich! You'll live in my shadow forever, as you should!" She was so smug. She was gloating. I took the learning system and smiled to myself. Unbeknownst to my sister, I got rich during the famine, not because of the system, and my dream was to score high on the exam and get into a good college. My sister managed to mess up her life even when she had the better system. Now she took the useless one. I could practically see the misery waving at her down the path.

To cure our daughter's pancreatic cancer, I made a deal with the System, trading the rest of my life for a miracle drug. My husband called me insane to my face, but secretly gave the medicine to his mistress to treat her facial scar. When I was falling apart in despair, he had the audacity to explain: "Vicky has dreams of becoming a star. She's already 24, she can't wait any longer. "Besides, didn't you get that drug by sleeping around? How could a housewife like you possibly get such high-end medicine on your own? If you want to save our daughter, why don't you go whore yourself out again? It's not like it'll kill you, right?" But the truth is, I really don't have another life to trade for another dose.

I had been working as a part-time male escort for a while. My relationships with clients had always stayed strictly online. One day, I got a request from a woman who had just gone through a breakup. Her voice reminded me of a female streamer I really liked. She eagerly invited me to meet her in person. After a lot of hesitation, I agreed to it. We started talking more often, but then, she suddenly disappeared. When she showed up again, she seemed like a completely different person. After one passionate night together, I realized I was in serious trouble.

After I fail to win over the hearts of all three female leads, the system tells me that I can return to my original world as long as my body dies in this world. So, I happily order myself a grand meal of carb-based food in the dark basement. After eating my fill, I pull out a coil of rope and get ready to hang myself. But just as I'm about to stick my head through the noose, I suddenly see comments floating before my eyes. "Don't do it, Daniel! Elena's just mistreating you because she feels that she should make it up to Ryan! You're actually her favorite brother!" "That's right! The same applies to your fiancee! Ryan has saved her before, after all! The truth is, whenever she hurts you, she feels her heart wrenching in pain at the same time!" "Your childhood friend feels nothing but guilt for Ryan. Daniel, don't ever give up, and don't take your own life. If you die, the three of them will go crazy for real!"

"System, I want to go home." The system responds to Tabitha Samson immediately. "Understood, Tabitha. Exit procedures are now activated. You'll be able to leave this world in half a month." Weirdly enough, the system, which has always followed its own programming, pauses for a few seconds. It soon brings up a question, its tone slightly confused. "You have a husband who dotes on you and a son who always takes your side, Tabitha. Isn't this your home? These people are your family, you know." The moment Tabitha hears the word "family", her gaze slowly fixes on the TV before her.

Kiami Lynn, remembers dying in a zombie horde after surviving 8 years of an apocalypse. Remembering how she spent her first life helping family who never truly cared, abandoning the few who genuinely loved her. Her final thoughts are filled with regret and betrayal as she succumbs to the horde, reflecting on how her misplaced loyalty led to her demise. But death is not the end, Kiami awakens ten days before the outbreak in her own past, alive, whole, and confused. She is greeted by the Ultimate Power System, a mysterious interface that grants her a Sanctuary — a space to train, store items, grow food, and prepare for survival. Within the Sanctuary, she is guided by Echo, a cryptic, riddle-speaking spirit who teaches her to cultivate new powers, master her skills, and make strategic choices. Reborn, Kiami is no longer the quiet, people-pleasing girl she once was. She is outspoken, calculating, and insightful, using the knowledge of her past life to anticipate the coming apocalypse. Over the course of ten days, she trains relentlessly, honing her reflexes, combat skills, and strategic thinking. Haunted by visions of her past mistakes, she learns the true cost of misplaced loyalty and the importance of foresight, strategy, and decisive action. Every decision carries risk, but every earned skill and reward brings her closer to becoming a survivor capable of not just enduring the apocalypse — but turning the tide of the human vs. zombie war. As the outbreak draws nearer, Kiami begins to manipulate the real world, testing her powers, setting traps, and preparing to rewrite her fate. With Echo’s riddles guiding her and the Ultimate Power System enhancing her body, mind, and strategy, she is determined that this time, nothing will stop her — no betrayal, no undead horde, no past mistakes.

Don Fiorenzo Ricci saved me and brought me home, raising me for seven years. During the day, he was refined and restrained, treating me the way a true father would. At night, he was endlessly inventive, making me his and his alone. I drowned myself in this twisted love, naively believing I was the only one for Fiorenzo. Then he turned around and married another woman, made her the Madre of the mafia family, and forced me to watch them together. I was done being a piece in their twisted games. The first time I ran, he nearly killed the maid who helped me. The second time I ran, he shot the gardener dead on the spot. The third time, and the last, I jumped into the ocean right in front of him. I did it all for freedom, even if it was only the freedom of my soul after death.