Miyako's mother has lived in the same house as Maron and her mother, since their daughters went to kindergarden. She was also a friend of Maron's mother, before the Kusakabe parents went away. And she was the one, who told Miyako about the past of Maron's family. Of course she's married to detective Toudaiji, but she's not really involved in the case with Kaitou Jeanne. Miyako's mother is famous for her cooking talents.