One Piece Crossover

In order to steal the inheritance left to him, William was abandoned on one of the most dangerous islands in the world and left to die. Years later, he returns as one of the most powerful men on the planet, the incredible ASHER KNIGHT!

Everyone mocked him. The useless son-in-law. The weak heir. But beneath that quiet facade...he is the one they should fear. Betrayal, Divorce, and Revenge are coming but no one will see it coming. Can the incredible son in-law rise from shame to claim what is rightfully his?

The sky split apart. A mysterious System descended. The world turned into hell. Mutant zombies, ancient monsters, and tyrant Lords hunt the remaining humans. Civilization collapses, hunger spreads everywhere, and hope is nearly extinct. Yet in the middle of the apocalypse, one man rises. Axel. While others struggle merely to survive, Axel awakens a forbidden talent: [1000x Critical Chance]. One tree cut down… becomes a forest. One monster slain… becomes a mountain of resources. One fortress built… becomes an impregnable city. The ruined world becomes the foundation of his empire. Together with Abby, a strategic genius with a heart as cold as steel, Axel begins building something greater than a mere shelter. An Absolute Fortress. An empire rising from the ashes of the apocalypse. The tyrant Lords will fall. Monsters from other worlds will be harvested. Even the Ruler of the System will be challenged. Because in this chaotic world, only one law remains: Everything Axel touches… becomes 1000 times deadlier. And this time, he doesn't just want to survive. He wants to rule the world.

Mason Wilde has been the Rodney family’s live-in son in law for five years since he married the family’s princess and heir, Scarlet Rodney. Everyone despises him and sees him as a good for nothing that feeds off the family’s resources. No one knows his real identity as the heir of the number one family in the world, the Wilde’s. Mason swore that one day, all those who treated him terribly would bow before him begging for mercy, and that day was finally here.

Everyone in New York laughed at Jack Ironheart. Three years of being walked all over by the Hart family. Three years of being insulted, hit, and spat on. They called him trash, useless, and a beggar. But one night they made one fatal mistake: They framed the wrong man. Jack Ironheart is the Undefeated God of War, the living legend every army on Earth thought was dead. One call from him and the Phantom Legion rises. One look from him and Manhattan goes black. And the richest men in New York suddenly see their bank accounts drop to zero. But now the same enemies who faked his death years ago are hiding inside the Hart family mansion, smiling. Now the worthless son-in-law is done pretending. New York will burn until every traitor begs. And the Undefeated God of War never loses.

One night, citizens in nine districts were frightened by the arrival of a large group of black robes resembling human forms named ORION. They hunted teenagers to be taken away to an unknown place, while other people who tried to get in the way would not hesitate to be killed right away. Because of the hunt, a small group of teenagers with a special ability called TENVIS appears. The formation of their group is based on the goal of destroying ORION. However, when it is revealed that one of them is the main key to stopping ORION, what will they do in the end? Keep solving it together or sacrificing that one person?

Pens up, Papers down, Power's primed. Something is wrong with this school. Students that harass one another because of their lineage or prestige. Teachers cannot do anything because of the law, and an eccentric Student Council President that expects total obedience to his accords. But according to Marc Callahan Noan, he wanted nothing to do with any of it. But little did he know, that he will be one wheel that will turn the gears of fate. Stand up, Bow down, Greet One and All. CLASS IS IN SESSION! (I will also post this on other sites like WebNovel, Honeyfeed, and RoyalRoad)

The story begins with Darien a boy who lives in a village far from the world begins to suffer the ravages of a frost in his village. One day he went out to collect wood for his house and met a strange man whom he took to his village. He leaves him with the mayor of that place and goes to tell his parents. However, soon after, chaos breaks out, because the man he took there was a vampire and he begins to turn everyone into them. Some get out of control and start committing crazy acts to drink more blood, however a group of knights arrive and start killing them. Darien is bitten by one of them and turns into one, but is left in a half state because of his family's genetics. He leaves with the group of hunters that arrived in the middle of the slaughter and Darien joins them, as he has no one in the world.

At eighteen, Marco Velez lost everything. A single accusation turned his family name into a curse. His father’s business collapsed overnight, his mother died in despair, and his ex-girlfriend married the one person he trusted least, his half-brother, Damian Cruz. Years later, the city he was cast out from thrives under Damian’s empire of luxury and deceit. But fate has a cruel sense of timing: Marco inherits a vast fortune from a mysterious benefactor, and with it, a second chance. Under a new identity, Marco returns to the glittering streets that destroyed him. Armed with wealth, intellect, and vengeance, he begins dismantling Damian’s world, one secret, one betrayal, one empire at a time. But when his most loyal ally turns out to be working for Damian, Marco must decide what matters more: vengeance, justice, or his own humanity.

Who can see the end of the path ? . Who can suppress the endless worlds and declare himself Supreme ?. it is I , the Apocalypse Emperor , the one who stands at the end of Dao. One of the five Supreme Emperors that governed numerous worlds , the Fire Emperor died to the knife of his loved one and was lucky to go back to the past before the apocalypse began. Can he correct his numerous mistakes and avenge his past life ?. Can he transcend the realm of Emperor and become an immortal this time ? . And the mysterious treasure , what was the origin ?.