Tamako Watanabe is Naoko's mother. She has curly brown hair, black eyes, and typically wears a green shirt, a dark apricot skirt, and yellow flats. She blends kindness with discipline, consistently supporting her daughter through difficult situations while also scolding her for misbehavior. Tamako understands and accepts Naoko's frequent transformations into Gauko and the resulting property damage as part of their family life. She expresses deep affection for her frog husband. Singing is one of her personal interests. Tamako maintains a stable family life in Hinata-Machi with her husband and daughter. Her character development centers on adapting to Naoko's condition and engaging in community activities, most notably joining a samba group. This involvement leads to her participation in a community samba competition, representing her primary personal pursuit outside family responsibilities.