is bleach episode 88 filler?

At nighttime in the Urahara Shop, Ririn bursts into the central room through one of the sliding door panels on Kon's back and frantically warns Kisuke Urahara that Ichigo Kurosaki is in danger before crying in distress at how she was severely delayed by Kon getting lost along the way. However, Urahara assures Ririn that Ichigo is fine as the latter sits up at the table next to him and 4th Division 7th Seat Hanatarō Yamada, where he apologizes to Ririn for leaving her behind in the process of saving Keigo Asano.