Pirate's Gravity Manipulator

Introduction: Traveling to the world of One Piece, Roga discovered that he was actually a victim on the terrifying three-masted sailing ship.How does this work?Roga is determined to defeat Moria, regain his shadow, and see the light again.Collect devil fruits along the way, build a team of ability users, and sail freely on the sea. (This book has a system. If you get a Devil Fruit, you can draw a lottery once.)