Luffy's mom is the most mysterious characters in the anime, but several question and answer segments provide the character with crucial insight.

Luffy can run out of stamina quite quickly in this cartoonish ... the Straw Hat Captain received an unexpected helping hand from a mysterious figure. In a recent question and answer session ...

Early on in the manga’s run, a fan asked Oda why ... is the reawakening of the ancient figure Joy Boy, a character whose reputation (like Roger and like Luffy) extends far beyond the details ...