is one piece episode 757 filler?

Law walks through the Whale Forest, and the members of his crew appear in front of him. They have a happy reunion, and go further into the forest to catch up.

Meanwhile, Wanda takes the Straw Hats to see Duke Inuarashi through a passage in the Rightflank Fortress. The Straw Hats gaze in awe at the plants on the ceiling that provide light, and then realize that Luffy is missing.

They find Luffy sitting on a tree outside the passageway eating grapes, and continue to be impressed by the beautiful scenery in the Rightflank Fortress.