One Piece: Global improvement system

The day the final chapter of One Piece was published, Kostas decided to start reading the series. For years, he had avoided spoilers, waiting for this moment. However, his life came to an end before he could do so. Now he finds himself in the world of One Piece, and he knows nothing about it! With the help of the global improvement system, he will try to survive in this hostile world, while reaching the pinnacle of power and marrying the most beautiful women.