How Does The Replication System Work In DxD: The Replication System!?

When the apocalypse came, she lost everything. Starving, hunted, and desperate, she trusted the one man she loved… only for him to betray her in the cruelest way possible. He stole her last supplies to please another woman and left her to die in a sea of the undead. But death wasn’t the end. She woke up days before the world collapsed. After cutting ties with her ungrateful ex and his parasitic family, a mysterious voice awakens in her mind, LUS, a Level-Up System designed to help her survive the coming end. With knowledge of the future and a system guiding her every move, she begins to prepare. She stockpiles resources, builds a base, and learns how to fight back against the horrors that once destroyed her. And when the apocalypse arrives again… she’s ready. But survival isn’t the only thing waiting for her in this new life. A silent killer who watches her like prey. A manipulative genius who wants to unravel her secrets. A gentle protector who sees the girl she hides. And a dangerous man who thrives in chaos. As the world burns and power shifts, they’re all drawn to her, each with their own motives, each with their own darkness. Even her past refuses to stay buried. Because now, the man who once abandoned her is back, broken, desperate, and begging for a second chance. Too bad she has no time for regrets. Not when she’s busy rising to power… and building a kingdom in the ruins of the world.

I get reborn, this time bound to a simp system. In my previous life, when the apocalypse happened during Christmas Eve, I gave Victoria Blake, a beautiful woman, shelter and respite, only for her to backstab me in the end. Apparently, she had revealed my home's location to a scion named Tristan Cole when I wasn't paying attention. Not only did those bastards take over my shelter, but they also tossed me to the zombie horde. When Tristan asked Victoria if she felt guilty, she just reclined in his arms while tittering daintily. "That's just one of the lapdogs I've reared. If he's dead, then so be it." Now that I'm given a second chance at life, I'll make sure to repay them for the pain and hurt they've caused me in my previous life.

In a world with machines and angels, the main character has to become the strongest to avoid getting killed and discarded.

In a world that has long considered werewolves a myth, old blood is stirred again when Raven—an ordinary young man living on the brink of collapse—is suddenly chosen by something that shouldn't exist. A mysterious system emerges within him: the Werewolf Evolution System. At first, Raven thinks it's just a delusion... until the first night of the moon changes. His bones crack, his blood boils, and something inside him begins to "awaken." But the transformation isn't just a curse. It's the beginning of evolution. Every battle he wins, every enemy he defeats, and every drop of blood he sheds, the system evolves, giving him new abilities, new forms... and a dark side that's increasingly difficult to control. Behind it all, the world begins to stir. The secret government, werewolf hunters, and the Alphas of various packs begin to sense something unnatural—a werewolf who defies the rules of natural evolution. Because Raven isn't just a human who became a werewolf. He's an anomaly. And when the final “evolution path” opens, Raven will be forced to choose: Become king among monsters… Or lose herself completely and become a disaster that even the Alphas can't stop. But one big question remains: Who really created the Werewolf Evolution System—and what is Raven's true purpose?

A boy was transmigrated from earth to another world. he wake up on the body of a youngster from the Arch Duke family. Currently, he was treated as thrash and was sent to govern a desolate area between borders of two kingdoms. Follow the main character dominate the Continent using the people of his domain and the system that gifted him the power to trample everything that gets on his way.

I picked up a system with my sister. The system said only one of us could bind to it, and the other could take twenty million dollars. My sister shoved me aside and chose the money. Ten years later, she squandered everything and ended up homeless. Relying on the luck the system gave me, I excelled in my studies, climbed the career ladder, and reached the peak of my life. Driven by jealousy, my sister stabbed me to death at my birthday party. When I opened my eyes again, I was back to the day we found the system. This time, she said without hesitation, “Luck is too intangible. I’ll take the loss. You can have the fortune.” I knew she had been reborn, too. What she didn’t know was that the luck granted by the system always came at the cost of one’s lifespan.