Batako works alongside Uncle Jam, a master baker who crafts Anpanman and his companions. Her duties center on aiding the bakery’s daily tasks—preparing baked goods and mending the flight-enabling capes for Anpanman and his allies. Though steadfast and hardworking, her forgetfulness often surfaces, blending reliability with endearing humanizing quirks.

Her name, "Batako," meaning "Butter Girl" in Japanese, ties her to baking elements, mirroring the food-inspired nomenclature common among characters in the series. Since her 1988 debut, she has maintained an unwavering role across episodes, movies, and spin-offs, her responsibilities persisting unchanged—a testament to her dependable nature despite occasional memory lapses.

In *Soreike! Anpanman Omocha no Hoshi no Nanda to Runda*, Batako upholds her routine support role, ensuring the heroes’ missions proceed smoothly through behind-the-scenes efforts. Her portrayal remains consistent, underscoring her status as a quietly essential pillar within the series’ structure.