Momoko Shirai 白井桃子

Momoko is a childhood friend and classmate in junior high school of Chizuru; she is nicknamed Momo. She constantly hangs around Chizuru and is visibly annoyed when Chizuru socializes with others, or even if someone simply sits too close to her. Momoko inevitably starts fighting Saori, who does not particularly respect Chizuru, when they talk.