Big brother, I want to become the strongest pirate in the world!

Summary Originally intending to become a Sword Saint, he failed the job change in the Dark Thunder Ruins and became a Berserker. Kazan, a white-haired boy with a ghostly hand suffering from Kazan Syndrome, traversed the world of One Piece from Arad with his sword.From being all alone to becoming a large family.Aiming to become the strongest in the world, we head towards Laugh Tale, the end of the Grand Line.Explore a century of blank history, vie for the position of maritime hegemon, challenge the pinnacle of the old era, and usher in a new era.This era is called "Monster".This is the story of a man with conjunctivitis who travels the seas, finding younger brothers and sisters along the way, and leading them to conquer the world.