One Piece: I AM LUFFY BUT A LITTLE DIFFERENT

This is a story about a man who gets reincarnated into Luffy's body in One Piece World. Now, he has to navigate his way to becoming Pirate King. But, this journey is not only to be easy. But, he doesn't have to worry. Not only his own talent and devil fruits are awesome but he also awakened a system that makes him stronger after he defeats each opponent. So, how different his journey will be?