is bleach episode 258 filler?

In Karakura Town, as a Senkaimon opens, Lieutenant Renji Abarai and his manifested Zanpakutō Spirit, Zabimaru, step out as the Senkaimon closes behind them and vanishes. When a frog hops in front of them, Hebi draws Saru and Renji's attention to it.

When Hebi attempts to leap toward the frog, Saru pulls him back by yanking on his chain. Expressing pain, Hebi asks Saru what is wrong with her, prompting Saru to state they do not have time to chase frogs.

Saying he understands, Hebi states he was just looking as Renji says he only brought Saru and Hebi here because he thought they would help him capture the Tōjū faster.