is one piece episode 777 filler?

The citizens of Arabasta wave goodbye to Princess Vivi as she sails away from Arabasta with Cobra, Karoo, and their attendants. They are escorted by a Marine ship captained by Rear Admiral Hina, and she orders Jango, Fullbody, and the rest of her men to stay vigilant in their escort.

Vivi climbs up to the Crow's Nest and waves goodbye to her subjects as she looks out at the open sea in front of her. Toto remarks that Vivi looks extremely comfortable out in the sea, and Koza replies that she is getting in touch with her pirating past again.