Mrs. Mudo is the mother of Setsuna Mudo and Sara Mudo. When Setsuna was a small child, Mrs. Mudo began to notice that he was under a mysterious protection that prevented him from falling ill or being injured in accidents. A strict Christian, Mrs. Mudo rejected her son as she senses that he was somehow "evil". Following her divorce from Mr. Mudo, Mrs. Mudo takes great length to Setsuna from Sara, especially after she catches him kissing Sara in her sleep. Determined to sever the relationship between Setsuna and Sara, Mrs. Mudo makes plans by taking Sara away and to have her marry the son of a businessman, However, Setsuna catches them at the airport, he confesses his undying love for Sara in front of them both and Sara then leaves her tearful mother behind as the two run away.