is bleach episode 13 filler?

As he runs along a riverbank in Karakura Town, Ichigo Kurosaki wonders where Karin Kurosaki and Yuzu Kurosaki are. Suddenly, Kon runs up to Ichigo in his body, prompting Ichigo to demand to know where he has been.

While Kon points out that he is the one who ran off without them, Ichigo grabs him by the collar and inquires if Kon knows where Karin and Yuzu are, leading Kon to assure him that he just saw them at the Kurosaki Clinic, to Ichigo's relief.