is bleach episode 47 filler?

After knocking out the guard outside her cell with Hakufuku, 5th Division Lieutenant Momo Hinamori breaks out and runs through the streets of the Seireitei while recalling the contents of the letter that her captain, Sousuke Aizen, left to her, which she admits that she could not believe at first before tearfully asserting that she now believes Aizen's account of who killed him. In the past, a young and impoverished Rangiku Matsumoto lies on the ground.