is bleach episode 104 filler?

Having been alerted to the confrontation of five of his subordinates with a Bount, 10th Division Captain Tōshirō Hitsugaya rushes to the scene alongside his lieutenant, Rangiku Matsumoto, and multiple other subordinates, where he finds the five Shinigami sprawled defeated across the alleyway. When Hitsugaya kneels beside one of the Shinigami and inquires about his condition, the Shinigami recounts how they tried to apprehend Gō Koga, but were incapacitated when he summoned his Doll, Dalk.