Haruna has shown to have a great fear of the supernatural, especially of ghosts. However, when the local ghost, Oshizu Murasame, returns to the living, via an artificially-built body from Dr. Mikado, Haruna and Oshizu quickly became good friends with each other. Oshizu learns of Haruna's feelings for Rito, and became very supportive, though not entirely helpful, for Haruna's success.