is one piece episode 928 filler?

Orochi goes on an angered rampage, crushing Komurasaki between his jaws. The ninjas refuse to help the oiran because they are busy dealing with an intruder.

They expose Robin in front of the party, revealing that she is an intruder. However, Brook appears and scares most of the ninjas away, and Robin fights some of them off with her Devil Fruit ability.

Nami and Shinobu watch from the ceiling when they are confronted by a ninja, Hanzo. Hanzo explains that Shinobu used to be extremely attractive and would kill her victims by seducing them first, earning her the name Man-Killer.