is one piece episode 919 filler?

Nami and Shinobu are caught spying on Orochi's men in the attic. The soldiers pierce through the ceiling with spears, which causes Shinobu to panic.

They climb into the attic, but Nami and Shinobu just manage to escape onto the rooftop. Shinobu reveals that she panicked because she was terrified of sharp objects.

Despite being caught, Nami found out where Orochi was stockpiling his weapons. They leave using Shinobu's kite.

Along the way, they see Sanji, who has attracted a line of hungry customers posing as a soba chef. However, he attracts some rivals who spy on him.