is bleach episode 323 filler?

Ichigo, Yasutora Sado, and Orihime Inoue run throughout Karakura Town. Orihime confirms that she sensed the Reiatsu of Rukia Kuchiki, as Ichigo heads out to assist them.

However, she tells him to search for Nozomi, stating that she will go to the river, where Rukia should be. Ichigo agrees, prompting Sado to volunteer to stay by her side, as they split up.

Meanwhile, Kon is still leading Nozomi to the mountain shrine, as she asks how long the journey will take. He tells her to have patience and points towards the shrine.

Kon asks her what is over there, recalling that she resolved herself to fix things so Ichigo and the others wouldn't have to protect her.