is one piece episode 446 filler?

The door to level 3 opens up, only for Hannyabal to come out. Inazuma and Luffy look at him surprised, only for Hannyabal to tell the break-in pirate he will not allow "scum" like him to travel on the seas.

Hannyabal and Luffy get in a serious fight, which seems uneven as Luffy is much stronger than Hannyabal. Hannyabal receives a Jet Gatling to the face.

As he lies on the ground he reminisces about his first day as a jailer. He remembers the sexy pirate Olive, who charms Hannyabal and knocks him out, only for Magellan to lock her up.