Mrs. Naniwa is the mother of Moko and Kankichi, bearing the family name established for her children in the 1969 anime adaptation. She appears consistently as a heavyset woman wearing glasses. Her personality merges sternness with an underlying kindness, and she functions primarily as a household figure who manages her children through a blend of discipline and care. Her husband works as a salaryman, with family dynamics depicting him as an older, taller version of their son Kankichi, including a mustache. Introduced in the 1969 anime, she features in all three television adaptations and manga adaptations influenced by the anime’s characterizations. Her character shows no significant evolution or expanded backstory across movies, OVAs, spin-offs, or later series. Her given name remains undisclosed across all sources.