Bleach Episode 148 -

, titled "Ashido, the Shinigami Who Came from the Past," is a unique entry in the series as it features a "canon filler" character originally intended for the manga by creator Tite Kubo. Episode Overview Aired: September 12, 2009 Arc: Arrancar: The Hueco Mundo Sneak Entry

The episode follows the fallout of Ichigo’s group being separated after falling into the Menos Forest. While Ichigo, Uryu, Chad, and Renji fend off hordes of Gillians, is rescued from an Adjuchas-class Hollow by a mysterious masked figure named Ashido Kanō . Bleach Episode 148

Why are episodes 147-149 considered as filler according to google? , titled "Ashido, the Shinigami Who Came from