is bleach episode 125 filler?

Having been impaled by the sword of Hollow Ichigo, who asserted that he was going to become the king instead of the horse in their relationship, Ichigo Kurosaki suddenly wakes up unharmed, wielding his Shikai, Zangetsu, and lying on a platform surrounded by floating versions of the buildings from the Senzaikyū pavilion, causing him to wonder where he is prior to a hallucination of 11th Division Captain Kenpachi Zaraki embedding his Zanpakutō into the ground next to Ichigo's head.