Upgrade in Pirates

An ordinary person traveled to the world of One Piece and discovered that this time was fifty years before the beginning of the Great Pirate Age. Since then, he changed his name to Portis, D, and Hai. After going through many hardships, he finally became the "Sea Dragon King" Portis who is feared by everyone in the depths of the new world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.