is bleach episode 61 filler?

Confronted by 5th Division Captain Sousuke Aizen on Sōkyoku Hill, 6th Division Lieutenant Renji Abarai holds Rukia Kuchiki in his arms and begins to express his shock at seeing Aizen alive, only to decide against it and focus on the latter's request, which he does not understand. Aizen asserts that Renji must have heard him as he stands with 3rd Division Captain Gin Ichimaru.

While Aizen reiterates his instructions for Renji to leave Rukia here and run away, back in the Central 46 Compound, 4th Division Lieutenant Isane Kotetsu kneels before her captain, Retsu Unohana, and draws a seal on the ground before performing Bakudō #58.