Batako-san functions as the lead assistant at Uncle Jam's bakery, actively participating in baking and providing general support. She was present for Anpanman's creation and shares in his upbringing alongside Uncle Jam, forming a family unit where she provides maternal care. This includes replacing Anpanman's head when damaged or depleted and mending his cape. Her duties encompass baking, domestic chores like laundry and cleaning, and delivering goods. She shares a close bond with Cheese, the bakery dog, having named him and advocated for his adoption. Batako-san frequently interprets Cheese's barking and partners with him on delivery runs. Her personality blends diligence, kindness, and optimism, occasionally tempered by forgetfulness. She possesses notable sewing skill, regularly repairing the flight capes used by Anpanman and other heroes. Early conceptual plans envisioned her discovered as an infant in the woods by a young Anpanman, but this idea was discarded to establish her as older than Anpanman and a foundational presence at the bakery since his inception. Her appearance features rosy cheeks, black eyes, a button nose, and spiky black hair – shortened during the series' run – usually covered by a chef's hat. Without the hat, she reveals a bowl-cut hairstyle. She wears blue overalls over a white vest. Her foundational role remains consistent throughout the franchise. Her origins prior to meeting Uncle Jam are not elaborated upon.