is bleach episode 115 filler?

At Karakura High School, having seen Rukia Kuchiki enter their classroom through the window and greet Ichigo Kurosaki from the other side of the room, two students standing with their classmates are left aghast at her doing so and attribute this to her only just returning to school, though they are also alarmed by the presence of 10th Division Lieutenant Rangiku Matsumoto and 11th Division 3rd Seat Ikkaku Madarame. Suddenly, Rukia grows serious and leaps forward before kicking Ichigo in the face.