is bleach episode 311 filler?

As a Hollow goes to attack a Plus, Kon arrives, inhabiting Ichigo Kurosaki's body. Kon goes to transform into Karakura-Raizer, but is soon interrupted by a man wearing a top hat and black suit.

He makes quick work of the Hollow and the Plus thanks him as her eyes glow red momentarily. Kon tries to ask the Plus if she is okay, but she merely fawns over the man, calling him Michel.

In the Giant Hollow Fortress, the Unnamed Female Arrancar says that everything is going as planned as Michel stands in the shadows. She says that she is impressed, but then says that she should be impressed with herself for creating a being like Michel.