is bleach episode 204 filler?

At Karakura High School, Mizuiro Kojima informs Ichigo that they have a guest, and Ichigo is shocked to see Rurichiyo in his classroom. Later, on the school's roof, Ichigo listens to Rurichiyo talking about the freedom of the Human World compared to life in the palace.

He asks her if something had happened and asks why Kenryū is not with her. He reminds her that she is the head of the Kasumiōji Clan and she should bear that in mind.

When Ichigo tries to return to class, she kicks a ball at him, demanding that he listen to her. However, Ichigo dismisses her and leaves, agitating her.