is bleach episode 124 filler?

In his inner world, Ichigo Kurosaki and Hollow Ichigo perform Bankai in unison, causing Ichigo's real-world body to stop in its tracks and arch its head back during the fight against Lisa Yadōmaru as its Reiatsu begins surging. Upon seeing a white substance pouring out of a newly-formed hole in Ichigo's chest, Shinji Hirako observes that it is beginning.

Back in the inner world, Ichigo and Hollow Ichigo stand in their opposite-colored Bankai, Tensa Zangetsu, before springing forward to cross blades.