Concepts

Throughout the series there were many concepts that did not make the cut.

Abandoned Ideas

 * The Green Databook revealed that Sanji's original name was going to be 'Naruto'. However, as the ninja manga "Naruto" was about to be serialized with Jump, Oda changed the name to prevent confusion.
 * Kokoro was originally planned to be male.

Ero Ero no Mi
The Ero Ero no Mi is a Devil Fruit of unknown typing. It was mentioned in Oda's SBS question corner. "Ero" is short for "Erotic". The fruit has never been implemented into the series itself, as Oda only thought this up as an idea about 13 times. It may be the inspiration for the Mero Mero no Mi, as both stem from the word for love.

It shares the same English name as the Mero Mero no Mi.