Mother, a middle-aged housewife from Ōita Prefecture, stands 165 cm with brown hair and a practical wardrobe of solid-colored T-shirts, skirts, and aprons favoring yellow and pink. Her cheerful yet intimidating presence surfaces during determined pursuits like snagging supermarket deals or managing chores. While early episodes spotlight her signature yellow outfit, later iterations diversify her attire.

Raised on a family farm, her childhood involved farm chores, insect-catching, and strict maternal discipline over minor missteps. Once a long-haired youth nursing a crush on a childhood friend, she later entered an arranged marriage via omiai. The couple ran an Ōita onsen before relocating to Tokyo’s Nishitokyo, residing in a fifth-floor apartment.

Initially portrayed as stern and devout—praying for luck and enforcing rigid rules—her demeanor softened over time. She shed overt religiosity, adopting a relaxed parenting style. Though lenient with son Yuzuhiko, she discouraged daughter Mikan from piercings or late outings, balancing frugality with lazy afternoons napping or snacking during rain.

She navigates friendships with Mrs. Mizushima, Mrs. Toyama, and affluent Mrs. Misumi, mimicking their elegance on a budget. Her calligraphy alias, Midori Imabari, and chikuwa-cooking hobby hint at hidden creativity. Persistent rumors linking her name to green attire were denied by the series’ creator.

Nicknamed “Banban” as a child, her aging features mirror her mother’s. Early motherhood saw hypervigilance, later shifting to inventive, laid-back tactics for household management. This adaptability intertwines with comedic blunders, like bluffing expertise in conversations, resulting in social mishaps.