is one piece episode 697 filler?

Kanjuro finishes his artwork and Usopp uses it as ammunition he dubs as "Bagworm". He is aided by Viola's ability to snipe at Sugar.

Usopp replies that he has no other choice as he readies his Kabuto, and is ready to fulfill his role as the Straw Hat Pirates' sniper by providing support from afar. Kin'emon asks if there is any way they can help, and Riku tells Hack and Tank Lepanto to help him protect Usopp and himself from the bounty-seeking mob, who are getting closer and closer using Kanjuro's net, but also tells them not to hurt any of the people.