Does One-Piece take place…

[Fantastische Hure]

on earth or where?

Maybe this a stupid question but it could take place thousand or even million years into the future on a colonised-version of Mars of Jupiter. They could be aliens.

 

[SSJ2]

Wherever it is there are 7-8 moons.

 

[Fantastische Hure]

Further down the milky-way?

 

[Future Warrior]

It’s just earth lol.