Rumi Matsuura is Miki's mother, infamous for her bad cooking. She is cheerful and sweet, and like her ex-husband, a little child-like as well. She works at a cosmetics company. She was married to her old friend Jin Koishikawa, later divorced him on good terms, and married Youji Matsuura, her old flame. In the anime television series, Rumi Matsuura is voiced by Yoko Kawanami in Japanese and Wendee Lee in English.