is one piece episode 786 filler?

Luffy and Chopper gaze in awe at the town before them, which not only has a large variety of people walking around, but is also composed almost entirely of chocolate. On the Sunny, Nami and Carrot excitedly wear their new dresses, and Nami beats up Brook for peeking under her skirt.

Pekoms tells them that it takes a day to get to Whole Cake Island from their current location, so he tells them to get groceries before they depart. Carrot notes that a large variety of races are gathered on the island, including minks.