is bleach episode 50 filler?

While three children in Karakura Town catch a cicada resting on a telephone pole outside with a butterfly net, Kon sits on Yuzu Kurosaki's windowsill in the Kurosaki Clinic alongside two of her other stuffed animals and pretends to be inanimate as Yuzu herself sews an outfit with a ribbon and a frilly skirt for him. Addressing Kon as Bostov, Yuzu promises to stitch many colorful threads onto the skirt, but quickly realizes that she does not have the colors she is envisioning for the skirt threads and runs out of the room to buy them after telling Kon to wait here until she gets back.