One Piece: Ultra Instinct

Waking up in the prehistoric jungle of Little Garden should have been a death sentence, but for the man now known as Haon, it was a brutal new beginning. The moment he opened his eyes to the sight of towering ferns and hunting dinosaurs, a System flickered to life just long enough to rebuild him from the ground up. It gifted him the "Perfect Body", the absolute peak of human physical potential, and imprinted his mind with the theoretical mastery of every elite fighter from the world of Lookism. From the "Invisible Attacks" of James Lee and the ruthless efficiency of UI Daniel to the crushing power of Tom Lee and the genius of Gun Park, he was given the blueprints for every legendary martial artist. Most importantly, he was granted the ultimate "Copy" ability, allowing him to mimic and master any movement he sees instantly. Then, as quickly as it arrived, the System vanished, leaving him with all the potential in the world but none of the actual experience to use it. Knowing he couldn't master these skills alone in a world of monsters, Haon did the unthinkable: he approached the warring giants, Dorry and Brogy. Impressed by the tiny human's fearless spirit, the legendary captains of the Giant Pirates agreed to put him through hell. For two years, Haon turned the island into his private crucible. He spent every day dodging mountain-sized axes and sparring with giants, using his Copy talent to absorb their staggering physical intent and force his modern martial arts to adapt to the supernatural scale of the Grand Line. He bled, broke, and rebuilt himself, learning how to combine the refined techniques of a street fighter with the raw, world-shaking power of a giant. By the time he was done, his strikes didn't just hit targets, they tore through prehistoric scales and shattered stone. Everything changes when the Going Merry finally pulls up to the shore. Haon has been waiting in the trees for this exact moment, ready to step out of the jungle and join Luffy’s crew. He isn’t interested in Devil Fruits or relying on a System that's long gone. He’s going to climb to the very top of the world using nothing but his own two hands, proving that a man with the training of giants and the power to copy any legend can become the strongest in history.