is bleach episode 27 filler?

In the Seireitei in Soul Society, the Shinigami race to find the the Ryoka by splitting up into groups and searching in different sectors. Perched on a rooftop, Yoruichi Shihōin watches four Shinigami run into an alleyway in hopes of finding one of the Ryoka first, only to discover it is a dead and run back the way they came while bickering among themselves over the behavioral shift of their peers, before walking away down the side of the roof.