Wealth, Fame, Power.
The pony who acquired all that was Gold Clover, the queen of pirates. With her last words she said:
"You want my treasure? Go and get it! I left it all in that place."
Ever since then, pirates from all over the world have been travelling to the Grand Line to look for the legendary treasure, the One Piece. This is the story of one of them, Pinkamena D. Pie, better known as "Straw Hat Pinkie".
Not just a retelling of One Piece. With all those new characters, the story won't be nearly the same as the manga. As such, knowing the manga is not required for enjoying the story.
Cover art drawn by Magello
Edit: Feature Box on 18/04/2016; this is the greatest day of my life as an author. Thank you, everyone!
Not recommended to be read on e-book, due to the loss of formatting when it's downloaded over the site.